You want to really blow your mind, check out the identities at yaygender.net. Go through them and try to imagine people having common understandings of these selections such that information is communicated by which is chosen.

What am I supposed to do with "woman" vs "womyn" vs "womon"? How about "differently-gendered" vs "metagender" vs "metamorph"? "Transgenderist" or "Trangenderalist"? Gender outlaw against gender pirate? Do these identities communicate or do they confuse?

These aren't genders, they're portions of GUIDs.