I dunno, I said it's used a lot by bigots, then a bigot shows up and agrees with me (now flagged). If that isn't a sign a term isn't great, I don't know what is?
Judging yourself by how unscrupulous people react to you is a common pitfall - it poisons your perception of others and blinds you to yourself.
Tangentially: I was confused by the usage of the ambiguous word, "weird", as shorthand for "bigoted". I thought you were literally asking what "mtf" meant.