The one thing I'd object to with the sports example is that I don't wanna see game day threads for teams I don't care about, but I'm totally open to general discussion of the league, including about teams I don't follow. If literally JUST the GDT were split off to the individual team communities I'd be cool with it.

But I totally agree with the over-fracturing of interests. Every now and then I'll see someone make a "spinoff" of a mostly dead community, just to post 2 or 3 things and stop. It'd be better if they just posted that in the existing community even though it only aligned 90% as well as they'd hoped.