I will agree with what LightFusion said, what MMOplay did was clearly a scam. In any case scammers must be banned.
Plus, missing marketplace topic doesn't mean that scamming is allowed like that. Many of the banned scammers had approach their "victims" through pm, without having any topic in marketplace.
Now, about their topic: Based on the rules, their topic must be locked and unpinned due to the fact that the member that created is banned. Though, junk is not an option. But who cares, since after day 2 their topic will reach 4th page and no one is looking for a server up to that page. (They stop in the 2nd page.)