Rather than having thousands of posts in a thread with location in title, would it be possible to divide the broad category into sub-categories (especially for those who can't/don't want to ship?)
For example, here's a chart I made dividing California into tangible driving distances:
Granted, there's those that live on the border of each division but other ways of diving the state actually increased those odds.
Just an idea. I thought maybe it would increase productivity and perhaps speed up sales by narrowing the area of interests.