I don't pay staff on forums as I like to reinvest any money I earn and would rather not spend that on labour, when it could be spent on a brand new feature which will benefit my members. Plus, I want staff members who actually want to work on the forum because they enjoy it, not because they are getting paid. Unless you are Mumsnet or a forum with millions of members, it is more of a hobby than a business and should be treated as such.
Nope. I'd like to, but at the same time it's hard to trust anybody on the Internet these days, so I like to stay away from that sort of thing, if only for safety reasons.