Not sure about that. Sure, you might drive up your short term sales if consumers think they're getting a great 5* product at a bargain. But in the long run, your customers will be disappointed by the quality and turn away from the platform. I hear more and more complaints about fake products being delivered, service degrading and real brands being drowned in the search results with Wish/Temu-like rubbish on Amazon.

I am still a regular customers at Amazon and I even still pay for the Prime membership but my shopping behavior has changed a lot over the years. Instead of buying expensive stuff like TVs, notebooks, sport equipment etc. I nowadays mostly buy cheap stuff due to the "free" shipping. Super glue, adapters, a cable here and there, little kitchen supplies etc.

I don't trust Amazon anymore for bigger things which from they'd profit the most.

Also Prime memberships are questioned more and more across my friends and family. And I think fake ratings are one important aspect for that. Among others like treating their employees like shit, having a horrible person as CEO, etc.