This starts with us.
Don't tag your articles to purposely mislead!
There is nothing creative, inventive, novel, or clever about what you're doing.
Some of this is well known and has gone on for a long time, and some communities have (thankfully) policed themselves.
I know the "New York" tag will get me a lot of readers, but that doesn't mean I put it on my articles willy-nilly. It does mean that I might occasionally write a piece about NYC things that irk my chain.
Actually writing about popular topics is good.
Tagging your crappy piece about whatever with a "USC Trojans" tag is bad.
This site isn't about seeing how many people will read your stuff. The Washington Post will not make you the next Michael Wilbon because you consistently get 1,000 reads.
This site is about improving your writing skills.
You do that by writing better. Not by making sure the Philly fans read your piece about fly fishing.
Just because you wrote a college football game recap and nonchalantly name-dropped an alumni who is in the NFL doesn't mean you wrote a piece that should be tagged "NFL."
I fully commend the writers of the "lesser-known" communities on Bleacher Report. I suggest you peruse around them for a while today to give them the recognition they deserve.
A lot of good writers are making their hay without abusing the system; it's a shame that lesser writers would like to make their name by a loophole rather than by self-improvement.