It seems that on SO there are people who monitor your acceptance rate when you dare to ask questions. I asked a couple of questions recently and I was told, in no uncertain terms that I have to improve my acceptance rate in order to get better answers.
My acceptance rate is 51%, is that still too low? If it is, then I can't expect any quality answers out of this question, because my meta acceptance rate is only slightly better here on Meta, at 53%.
Edit: Just to make things clear, I do contribute to the SO extensively (418 answers and counting), and when I ask question, I make sure that my question is of high quality one ( as can be proven from the number of upvotes I got per question). The answerers might not get accepted answers from me but they can get a lot of upvotes, which is a form of appropriate reward.