@arkandel I think the idea is that a lot of the "negative reviews" around here tend to boil down not to what's wrong with the game but what's wrong with the staff, which is a) probably not strictly "constructive", and b) probably going to end up coming across as a personal attack.
So I suspect the fear is that, based on all past experiences on this forum, the following sort of exchange will happen:
Admin: Come play at Game X, we have churros for everyone!
Potential Player: Ooh. I like churros. Tell me more!
Former Player: Game X? That game is terrible. You only get whipped cream with your churros if you're one of Admin's TS buddies, and everyone else has to get the dregs.
Admin: What? That's a blatant lie. Whipped cream is available for anyone who runs a plot for other people.
Former Player: [screed about how they never got whipped cream despite running two plots early on]
Admin: [rant about how the whipped-cream-for-GMs rule post-dated those two plots, and besides, Former Player got banned for Egregious Churro Hoarding anyway]
Random MSB Poster: [gif of eating popcorn]
Former Player: [profanity-laden response boiling down to "No, you", and also how the churros weren't even very good]
Moderator: Okay, this thread is off into the Hog Pit if it's turning into this much negativity and attacks.
Edit: And apparently @Faraday and I went to the same place, only I had more churros.