I just received a 3-star review, not because of the product’s quality but due to the Unreal Engine version compatibility. I can already picture how this transition will discourage potential buyers, as they won’t be able to properly assess the pros and cons of products anymore. 
This feels so real:
It's ironic to see someone complain about harassment and trolling on the UE Marketplace, while engaging in the same behavior here on the forums, targeting a random person just because they expressed concerns about the star-only review system on Fab. I guess we get what we deserve...