Scott, try looking at a thread in another forum.
Personally, I don't care for the "rate thread" thing, much less a "like" button. The latter serves more or less the same function as a post that just says "+1" or some such -- it's a form of noise. As far as I'm concerned, we're about information and discussion, not about popularity.
"Once the writer in every individual comes to life (and that time is not far off), we are in for an age of universal deafness and lack of understanding."
(Milan Kundera, Book of Laughter and Forgetting, 1980)