Study On Removal Of Google Business Profile Reviews
Briefly

In a large study analyzing nearly 5 million reviews, it was found that 5-star ratings are more likely to be removed due to perceived inauthentic activity.
The study revealed that reviews lacking replies from businesses are disproportionately removed, with 73.7% of deleted reviews having no response, indicating possible detection of fake or incentivized feedback.
Engagement factors are critical; reviews from suspicious users or without business interactions face higher deletion rates, showcasing the importance of genuine engagement in reputation management.
Content and tone play a role, as extreme ratings, especially overly positive or negative ones, undergo closer scrutiny given their potential significant impact on a business's reputation.
Read at Search Engine Roundtable
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