Volunteers are the life blood of sites like this and are usually motivated by a love of chess. Paying such volunteers would no doubt impact negatively on membership fees etc, which is unlikely to be good for the site at large.
Unless you're planning to pay them iwi20? ;o)
Do you think that mods (help) should be paid? Some of them are on Chess.com several hours a day, thats like a part time job.. what do yall think?