Problem solved. Good idea!!!!
there is a forum that i belong to that will only let you bump a thread once every three (3) days and the fs/wtb ads cannot be replied to directly, except by a pm to the seller. I like the fact that it eliminates the buddy bumping, and keeps the most recently posted ads near the top of the pile for at least a day or two. They also have sub categories for different things to eliminate having to wade through a ton of junk that you aren't interested in. While this might be an inconvenience to create sub categories for the forum creators, i think the end product makes it much better to navigate.