While I get that users should be the focus (I've gotten to know a few folks pretty well here), It's helpful for things that fall under multiple topics. Where do you tag your post about John Williams writing music for the new Star Wars movie? #movies? #music? I do think waiting until they fill out a hubwheel is a good idea. I'm more than halfway into my first one, and it's nice to be able to track how much I've contributed.