If you look at Ask as a contest you are not going to have very much fun. When I answer a question I'm not thinking in the back of my mind " I wonder if I'll get a bunch of thumbs up!". Truthfully, I hardly even notice it at all. And just because you think you gave the best answer doesn't mean that everyone else feels the same way. Hell, half the time even if I like an answer I don't think about the whole thumbs up thing. So don't sweat it, just have fun.