User blog comment:Aokpisze/Timeline of the MB's, 2009-Present/@comment-3003185-20120516203248/@comment-4052371-20120517214207

How is getting rid of duplicate topics going to reduce spam? For example, compare Your Position In The MB to Your Position In The MBs Advanced. The topic I mentioned first was a duplicate of the second, but it actually had less spam and long quote chains, and now is more active than the original. And it could be the other way around; inferior dupe topics will become unpopular and disappear to the back pages. So I don't think removing that rule will cut down a lot on spam.