User blog comment:Aokpisze/Timeline of the MB's, 2009-Present/@comment-3003185-20120516203248/@comment-3003185-20120518021052

Not if people keep posting in them:

Let's say that there's topic A. Well, there's a copy of topic A, called topic A.2.

Instead of posting just once in topic A, newbie X posts once in both topic A and A.2. If topic A.2 weren't there, there would only be one extra spam post, not much of a problem. Not to mention the fact, as you mentioned, of competition, and, more importantly, plagarism.