do we really need the forum to ban these users?
they are already being kicked out of any campaign with a manager that looks at their post history since most of them are obvious low quality posters. so practically they are banned without the forum intervention.
the only problem would be when there is a low quality campaign itself where the manager is some ICO scammer who doesn't care or one with automated payments in which case the campaign itself should be banned, like what theymos did with yobit a while ago.
in other words the problem should be solved at the source, it would be easier and requires less work.