These conversations remind me of the descriptivist vs. prescriptivist debates grammarians have. I suppose it makes sense, as language is the ultimate community creation, that some of the same ideologies would apply, in a similar way, to a community like metafilter. Ultimately neither side can ever "win." The system relies on the tension between the two: the descriptivists providing the flexibility and the prescriptivists keeping the spirit of the site alive. Me, well I guess I'm a descriptivist/prescriptivist descriptionist.
Also, here is where mathowie says why he isn't going to make MetaFilter filterable by category, which I now realize is an argument against empowering MUCK users with #ignore.
And good night. (Music is from here.)