i read the first page and came to my opinion:

have the WLT in its own forum. warn about spam. if someone spams too much, delete ever single one of their posts from the forum. simple, clean, effective

why wouldnt this work?

pros: keeps it fun for everyone else, stops something like this from happening, shows that person even though they spam, we can still mass prune =)
cons: dunno, are there any?