You know, pondering the question a bit more. Allow me to elucidate. A single "thread" named Southern California Get-Togethers would make it very easy to find all the festivals in SoCal. Better yet, if that thread were to become List and then become a "Sticky" . . . well, that would be even easier to find ALL of the festivals in that region - in a single easy to find forum post.
As it is now, someone would have to search through multiple threads, reading each one to find festivals in their region, making a note of each relevant festival, and compiling their own list.
If that were a single post or sticky (not a thread), I'd bookmark it and always refer to it.
Right now, we have 1,807 threads in "Regional Get Togethers" I would imagine we would have 15 to 25 threads or Stickies each identified by region.