People need to lighten up for Christ's sake. I agree that gay shouldn't be used as an insult, but the original post was essentially mocking people who use it in that context, can't comprehend how THAT could warrant a year long ban (inb4 "points system", "hipster irony", fuck off.) Perhaps I'm just de-sensitised from offense, but i really do think people should joke about these things, they're serious matters yes, but they're normal human things and therefore should be joked about imo.
Concerning words like gay and mental, i think it's just ettomology isn't it, that's how the words have evolved. "Mental" is no longer solely associated with mental illness, it now is also synonymous with "crazy", the word has evolved.
Sorry if this makes no sense, I'm prettttyyy drunk right now.