I've noticed a few tags of the form "game-design" and "game-engine". Well, yeah. It's about games. We're on the Gamedev beta.
I've gone and stripped out "game" from all of these, just to get it done with, but if anyone's got a reason to put them back, now is the chance.
Edit: Similarly, the tag "game" should just be removed whenever it shows up. If it's not about games, it's on the wrong site.