You say to never pay for posting because the writers will not come back to the forums when they are done posting. That is not the reason to pay for posts! A forum owner should use our service to make their forum more active so that visitors are more likely to become a member. It is hard to gain new members if your forum is dead.
Also, why are you against paying to post in forums if you get paid to post yourself?
http://www.sitepoint.com/forums/showthread.php?t=294696
Yes, are a FORMER writer for ForumLaunch.