to what jo said.
i think that might fail when you use song lyrics; its too subjective a subject, and people can take things like that very personally. e.g. someone postssomething about oving a banRAB lyrics, others disagree, ensue flamefest and pointless arguements.
but if you ue poems, you would stand a better chance of objective and more meaningful posts, but i doubt you'd get much response. probably not enough people read poetry around here, and it would be kept afloat by several regular posters. but i'd post there, so it may be worth a try, i may be very wrong.
like tojes said, most posters are apathetic towarRAB other's work, focusing mostly on their own. which is slightly annoying.
edit: i can see about six threaRAB on the first page where i don't believe the ts has posted a crit on anyone else's work