Well, all what you people said is right, but ...
Take a look at some of my latest reviews (not the quick ones). I provide some logical reasons to the rating I give, while also describing how playing the level made me feel, and still, I get "0 of 2 users found this a good review".

No, but there must be some troll downvoting other people's reviews in hope that even the last of us JJ2 fans leaves J2O once and for all.

The only thing we can do is take a look at those reviews ourselves, and if they're alright, upvote them ourselves.

I can't do it because my average helpfulness doesn't allow me to, or because admins blocked me from adding to average helpfulness, can't tell exactly.