I'm tempted to start a community about the country between Chad and Mali... A nice wholesome community... I'm completely unqualified and know nothing about it but the amount of removed words would be amusing...
True, though "bitchin'" isn't used as a slur in this context, it's slang for "cool." Since like 1970 too, it isn't some "new rizz."
If we want to get technical, a slur is "A disparaging remark; an aspersion." So by the dictionary, any negative remark, especially one that is a false or damaging accusation or insinuation, is "a slur." Therefore "you are a silly goose" counts as a slur, as it can be contextually negative to be seen as silly, and it is false to insinuate that you are a water fowl.
We don't really treat the word "slur" in real life as it's definition would suggest, or to reign in my above joke a bit, words like "fuckface" or "dick" would commonly be considered a slur. Instead they're just considered negative remarks by the community at large, to be a "slur" in the eyes of the public (not the dictionary) it has to have something more than just "bad."
I posit that "bitch" is truly no different than those common "bad" words, and should not be considered a slur. Frankly, same for "cunt."
Ironically, censorship offends me and hurts the feelings of the censored. And no this isn't me lamenting that "we can no longer say it," I've been going on tirades against censorship since Tipper Gore got a boner for The Dead Kennedys and H. R. Giger. Fuck the PMRC, fuck the RIAA, fuck Jesse Helms, fuck censorship!