{
  "title": "Google review risk-score denominators: source audit and identification models",
  "version": "1.0",
  "published": "2026-10-27",
  "article_url": "https://reviewremoval.ca/blog/google-review-risk-score-denominator-study.html",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "source": {
    "source_url": "https://localo.com/blog/review-velocity-study",
    "source_publisher": "Localo",
    "source_published": "2026-05-29",
    "checked": "2026-10-27",
    "capture_sha256": "3a4f5051be6e999f87168b151bb13b17e23162134cde4f08e5857f71f1b7a273",
    "study_profiles": 22292,
    "study_deleted_reviews": 335520,
    "correlation_profiles": 5804,
    "correlation_inclusion": "Profiles with more than 10 deleted reviews",
    "window": "November 2023 to January 2026",
    "percent_definition": "Share of each profile's deleted-review set, not its full review base",
    "velocity_definition": "Maximum number of reviews created per profile in any rolling 7-day window",
    "velocity_rows": [
      [
        "1-2",
        773,
        594,
        16,
        72.6
      ],
      [
        "3-5",
        1472,
        129,
        21,
        86.6
      ],
      [
        "6-10",
        1557,
        53,
        30,
        90.2
      ],
      [
        "11-20",
        1155,
        20,
        54,
        91.4
      ],
      [
        "21-50",
        639,
        9,
        106,
        91.9
      ],
      [
        "51-100",
        137,
        8,
        218,
        91.9
      ],
      [
        "100+",
        71,
        6,
        533,
        93.4
      ]
    ],
    "quintile_rows": [
      [
        "Five-star share of deleted reviews",
        "percent",
        97.6,
        59.3
      ],
      [
        "Generic-phrase share of deleted reviews",
        "percent",
        26.2,
        11.2
      ],
      [
        "Maximum reviews per week",
        "reviews_per_week",
        39.7,
        4.6
      ],
      [
        "Average deletions per profile",
        "reviews_per_profile",
        114,
        23
      ]
    ]
  },
  "summary": {
    "source_rows": 11,
    "constructed_rows": 6,
    "total_records": 17,
    "velocity_row_profile_sum": 5804,
    "correlation_profiles": 5804,
    "study_profiles": 22292,
    "correlation_to_study_profile_percent": 26.036246186972907,
    "example_original_share_gap_percentage_points": 47.5
  },
  "velocity": [
    {
      "record_id": "V01",
      "record_type": "source_aggregate",
      "velocity_label": "1-2",
      "profiles": 773,
      "median_lifespan_days": 594,
      "average_deletions_per_profile": 16,
      "five_star_deleted_share_percent": 72.6,
      "share_denominator": "profile_deleted_review_set_not_full_profile",
      "source_url": "https://localo.com/blog/review-velocity-study"
    },
    {
      "record_id": "V02",
      "record_type": "source_aggregate",
      "velocity_label": "3-5",
      "profiles": 1472,
      "median_lifespan_days": 129,
      "average_deletions_per_profile": 21,
      "five_star_deleted_share_percent": 86.6,
      "share_denominator": "profile_deleted_review_set_not_full_profile",
      "source_url": "https://localo.com/blog/review-velocity-study"
    },
    {
      "record_id": "V03",
      "record_type": "source_aggregate",
      "velocity_label": "6-10",
      "profiles": 1557,
      "median_lifespan_days": 53,
      "average_deletions_per_profile": 30,
      "five_star_deleted_share_percent": 90.2,
      "share_denominator": "profile_deleted_review_set_not_full_profile",
      "source_url": "https://localo.com/blog/review-velocity-study"
    },
    {
      "record_id": "V04",
      "record_type": "source_aggregate",
      "velocity_label": "11-20",
      "profiles": 1155,
      "median_lifespan_days": 20,
      "average_deletions_per_profile": 54,
      "five_star_deleted_share_percent": 91.4,
      "share_denominator": "profile_deleted_review_set_not_full_profile",
      "source_url": "https://localo.com/blog/review-velocity-study"
    },
    {
      "record_id": "V05",
      "record_type": "source_aggregate",
      "velocity_label": "21-50",
      "profiles": 639,
      "median_lifespan_days": 9,
      "average_deletions_per_profile": 106,
      "five_star_deleted_share_percent": 91.9,
      "share_denominator": "profile_deleted_review_set_not_full_profile",
      "source_url": "https://localo.com/blog/review-velocity-study"
    },
    {
      "record_id": "V06",
      "record_type": "source_aggregate",
      "velocity_label": "51-100",
      "profiles": 137,
      "median_lifespan_days": 8,
      "average_deletions_per_profile": 218,
      "five_star_deleted_share_percent": 91.9,
      "share_denominator": "profile_deleted_review_set_not_full_profile",
      "source_url": "https://localo.com/blog/review-velocity-study"
    },
    {
      "record_id": "V07",
      "record_type": "source_aggregate",
      "velocity_label": "100+",
      "profiles": 71,
      "median_lifespan_days": 6,
      "average_deletions_per_profile": 533,
      "five_star_deleted_share_percent": 93.4,
      "share_denominator": "profile_deleted_review_set_not_full_profile",
      "source_url": "https://localo.com/blog/review-velocity-study"
    }
  ],
  "quintiles": [
    {
      "record_id": "Q01",
      "record_type": "source_aggregate_with_derived_ratio",
      "metric": "Five-star share of deleted reviews",
      "unit": "percent",
      "top_quintile_display": 97.6,
      "bottom_quintile_display": 59.3,
      "nominal_ratio": 1.6458684654300169,
      "source_url": "https://localo.com/blog/review-velocity-study",
      "notes": "Ratio of displayed source summaries, not a deletion probability or causal effect."
    },
    {
      "record_id": "Q02",
      "record_type": "source_aggregate_with_derived_ratio",
      "metric": "Generic-phrase share of deleted reviews",
      "unit": "percent",
      "top_quintile_display": 26.2,
      "bottom_quintile_display": 11.2,
      "nominal_ratio": 2.3392857142857144,
      "source_url": "https://localo.com/blog/review-velocity-study",
      "notes": "Ratio of displayed source summaries, not a deletion probability or causal effect."
    },
    {
      "record_id": "Q03",
      "record_type": "source_aggregate_with_derived_ratio",
      "metric": "Maximum reviews per week",
      "unit": "reviews_per_week",
      "top_quintile_display": 39.7,
      "bottom_quintile_display": 4.6,
      "nominal_ratio": 8.630434782608697,
      "source_url": "https://localo.com/blog/review-velocity-study",
      "notes": "Ratio of displayed source summaries, not a deletion probability or causal effect."
    },
    {
      "record_id": "Q04",
      "record_type": "source_aggregate_with_derived_ratio",
      "metric": "Average deletions per profile",
      "unit": "reviews_per_profile",
      "top_quintile_display": 114,
      "bottom_quintile_display": 23,
      "nominal_ratio": 4.956521739130435,
      "source_url": "https://localo.com/blog/review-velocity-study",
      "notes": "Ratio of displayed source summaries, not a deletion probability or causal effect."
    }
  ],
  "bounds": [
    {
      "record_id": "MB1",
      "record_type": "constructed_identification_bound_not_observed",
      "original_reviews": 10000,
      "deleted_reviews": 500,
      "deleted_five_star": 467,
      "deleted_five_star_share_percent": 93.4,
      "deletion_fraction_percent": 5.0,
      "original_five_star_min": 467,
      "original_five_star_max": 9967,
      "original_five_star_share_min_percent": 4.67,
      "original_five_star_share_max_percent": 99.67,
      "assumption": "Deleted reviews are a subset of a fixed original review set; surviving star composition unknown. No new reviews or other changes."
    },
    {
      "record_id": "MB2",
      "record_type": "constructed_identification_bound_not_observed",
      "original_reviews": 10000,
      "deleted_reviews": 1000,
      "deleted_five_star": 934,
      "deleted_five_star_share_percent": 93.4,
      "deletion_fraction_percent": 10.0,
      "original_five_star_min": 934,
      "original_five_star_max": 9934,
      "original_five_star_share_min_percent": 9.34,
      "original_five_star_share_max_percent": 99.33999999999999,
      "assumption": "Deleted reviews are a subset of a fixed original review set; surviving star composition unknown. No new reviews or other changes."
    },
    {
      "record_id": "MB3",
      "record_type": "constructed_identification_bound_not_observed",
      "original_reviews": 10000,
      "deleted_reviews": 2500,
      "deleted_five_star": 2335,
      "deleted_five_star_share_percent": 93.4,
      "deletion_fraction_percent": 25.0,
      "original_five_star_min": 2335,
      "original_five_star_max": 9835,
      "original_five_star_share_min_percent": 23.35,
      "original_five_star_share_max_percent": 98.35000000000001,
      "assumption": "Deleted reviews are a subset of a fixed original review set; surviving star composition unknown. No new reviews or other changes."
    },
    {
      "record_id": "MB4",
      "record_type": "constructed_identification_bound_not_observed",
      "original_reviews": 10000,
      "deleted_reviews": 5000,
      "deleted_five_star": 4670,
      "deleted_five_star_share_percent": 93.4,
      "deletion_fraction_percent": 50.0,
      "original_five_star_min": 4670,
      "original_five_star_max": 9670,
      "original_five_star_share_min_percent": 46.7,
      "original_five_star_share_max_percent": 96.7,
      "assumption": "Deleted reviews are a subset of a fixed original review set; surviving star composition unknown. No new reviews or other changes."
    }
  ],
  "examples": [
    {
      "record_id": "ME1",
      "record_type": "synthetic_integer_example_not_google_or_client_data",
      "label": "A",
      "original_reviews": 2000,
      "deleted_reviews": 500,
      "deleted_five_star": 467,
      "deleted_other_stars": 33,
      "surviving_reviews": 1500,
      "surviving_five_star": 500,
      "surviving_other_stars": 1000,
      "original_five_star": 967,
      "deleted_five_star_share_percent": 93.4,
      "original_five_star_share_percent": 48.35,
      "surviving_five_star_share_percent": 33.33333333333333
    },
    {
      "record_id": "ME2",
      "record_type": "synthetic_integer_example_not_google_or_client_data",
      "label": "B",
      "original_reviews": 2000,
      "deleted_reviews": 500,
      "deleted_five_star": 467,
      "deleted_other_stars": 33,
      "surviving_reviews": 1500,
      "surviving_five_star": 1450,
      "surviving_other_stars": 50,
      "original_five_star": 1917,
      "deleted_five_star_share_percent": 93.4,
      "original_five_star_share_percent": 95.85,
      "surviving_five_star_share_percent": 96.66666666666667
    }
  ],
  "limitations": [
    "Secondary analysis; no individual review records or independent replication of Google moderation.",
    "Published correlation set explicitly includes only profiles with more than ten deleted reviews.",
    "Source percentage summaries refer to each profile deleted-review set, not all public reviews.",
    "Constructed bounds and examples are mathematical and not observed Google or client outcomes.",
    "The source does not identify a separate Canadian sample.",
    "Source velocity labels are preserved; the exact 100 boundary is not redefined.",
    "Source quintile scores cannot be externally validated without their full scoring rule and raw records."
  ]
}