Well, post one and see what happens. You've made all the appropriate disclaimers...and yeah, the two responses you mentioned (three counting "it sucks") are not very helpful. Usually I've found that when people have offered me constructive criticism, I haven't enjoyed it at the time, but it does give me something to think about, and ultimately helps a lot more than insincere well-meaning compliments.
Go ahead, post one. If you don't mind the amount of chaff you have to sort through here to get the wheat. Guaranteed there will be some of each.