I also welcome criticism, as long as it's more useful than "LOL U Suk". It can hurt a bit, but silence is worse, because silence means apathy and no readers: I failed to hold the audience, and without FDK, I can't figure out why.
You hit the nail on the head there, Queen of the Capes. I think that's particularly important if you're a new writer or even one that's trying something different. If you don't know what the problem is, how are you supposed to correct it? I don't mind being told that what I've written is somehow lacking, as long as it's constructive.