once i got past the earliest steps on the writing road, past those first publications and false sense of feeling 'pretty good', i managed to step aside from ego enough to be open to the more experienced voices, the more developed skillsets; i didn't agree with everyone and not all critters even have your best interests at heart. grow, read, listen, write, listen and read even more - in offering ones thoughts on someone elses poem, you are teaching yourself.
nothing elitist there at all. it's called learning a craft.
That's what it all comes down to, how willing you are to separate yourself from the emotional input of a poem and entertain another's pov without becoming defensive. Hell, even T.S. Eliot disagreed with Ezra Pound on things. But he still respected him.
The key is to be open-minded about another's opinion without becoming emotionally invested. Same is applicable in politics and religious subjects. Art is no different. When it comes to critique, it is solely the critiquer's personal opinion; unless it addresses proper spelling, grammar, and punctuation, etc. And even then, literary allowances are made for such purposes as dialect. Faulkner's The Sound and the Fury is a perfect example of that.