There is a difference between a vendor utilizing the forum and a bot spamming the forum. I don't think that particular user would fit in to that type of section either. Thanks for the suggestion though.
No problem. We need to help grow the forum and a B/S/T section will help to get members and keep members since you need a certain amount of posts to see the section then you need to be a regular to post your items and to buy those items.
A B/S/T thread will be good for the forum plus it will cut down on spamming the wrong section. If a post is made to B/S/T in the wrong section of the forum then it should be removed ASAP. Of course all this will be explained in the rules.