Well, in answer to the question: I listen to them to a certain point. I've had plenty of trolls lately (Not here, but some others) and a few really good, in depth reviews. For me, listening to the reviews is a good way to gauge the readership (if you get good, non-troll ones). Sometimes, it can be good in terms of assisting an idea to its fullest potential or correcting some minor errors. (Something like the one first posted here, not helpful, in my opinion.)
As has been said, your style is yours. You decide how you want to write it. Taking, for example, George R.R. Martin: I cannot get into his writing... I cannot for the life of me, but he's doing a little fine (yes, sarcasm, my third language) for himself. And way to go for him. To have someone change that to, say, DP's style, or BW, or mine would take away things people do like about it. And if one person has a problem with your style, then maybe they shouldn't be reading it.
As for reviews, when I leave one, I do a good-concrit-good idea. But I make sure it's not stupid concrit or nitpicky to begin with.
I hope I'm making sense...