Critiquing is sometimes just another way for people to feel bad about themselves, and isn't poetry usually the thing people turn to when they're already feeling that way?
So, as creator, I hereby declare that critiquing is not necessary, nor should it be feared.
However, constructive tips should still be appreciated, especially when prompted; in other words, if you ask for feedback, and your poem happens to sound like it was written by a 12-year-old, you should not expect to be lied to (nor should the reader be asked to lie).
Post as many poems as you want, whenever you want, however you want. No rules, no secret codes... just plain common sense and decency.