Who says they aren't meant for critique? And how can praise not be regarded as a form of critique?
Jeremy
Sorry, should have added "specifically" in that sentence somewhere. Just like OP is specifically asking for comments for which a User Critique section is specifically suited. It's a far cry from "anyone posting anything anywhere, because it's LuLa".
Praise is not a form of critique because it tells you nothing about the "why" or "how", and helps little to none in improving one's approach.
Of course, this is all just imo, ymmv, etc...