We have it set where an area does not become visable until 15 posts are made. It is where people buy and trade their used items.
We had problems in the past and finally got it cleaned up to where there where no problems. Recently we have been having people make 15 posts in 15 minuts, go right to the market place and begin selling. I have caught a few dealers trying to use the area but the area is for people selling personal used stuff, not items bought for profit. Worse yet we are getting people new to the forum, start selling the vanish after stealing money from quite a few members. It went from a place to dump used gear to a place where people who steal and vendors are trying to get access.
I am getting ready to move to xenforo and I hope I can set it up where it is a little tighter.