I'll use it if someone identifies that way; I think that's basic respect. I take the stance that I'll use their pronouns if they use mine.

Otherwise, I figure "they" works perfectly fine.

Although I did prefer to be referred to as "hir" and "s/he" rather than the "she"s I got in there. "She" makes my eyes twitch; at least the person who used "hir" realized that they had no fucking clue what my gender is.

The majority, I think, don't use "womyn." A few over in fem_rage do, and I just ignore them. Talk about missing the whole point.