This is super common, I know multiple people who do this. Even crazier, a few people I know who do this worry their account will be flagged for only giving 5 s

This is super common, I know multiple people who do this. Even crazier, a few people I know who do this worry their account will be flagged for only giving 5 star reviews. So, to prevent suspicion, when they ACTUALLY buy something they give it 1 or 2 stars just to balance things out. Thus, any merchants who don't buy reviews get additionally penalized.