Well I am not sure, but from what I hear, they dont get paid even 1/3 as much as I would have thought!
I dont think that the job is worth the aggravation for that little amount of pay. Of course, almost all of the mods have other jobs anyway. This is probably more of a hobby for them. Posting at this site is a hobby for me as well, only I dont get paid $2000 a month to do it