Compare http://farmhack.org/forums/online-farm-hack-tools-0?page=2
against http://farmhack.org/forums/online-farm-hack-tools-0?page=3
There are >10 pages displayed in the pager, but each one shows the same content, which is the original 2013 post and a few spam replies.
Interesting! I think I see the issue. The comments pager is actually paging through Recent Conversations. The easiest workaround is probably to disable paging in the Recent Conversations cell, let readers browse to a dedicated page in order to view the conversation archives.