Would anybody else find it useful if we were able to link threads? What I imagine is the ability in the original post to link to other threads. Here are some examples:

Buyer's Forum / Seller's Forum - allow a WTB thread to link to a FO/FS thread
Gamer's Gauntlet - Empower Bimmy to link each individual weekly contest thread to the main contest thread for the year
Other: maybe when a duplicate thread is locked, a mod can link the thread it's duplicating in the original post

I make extensive use of this type of behavior when dealing with multiple Atlassian Jira environments, and I think it would make navigation of the site easier. 

?