transandnonbinary

I only have a tiny amount of experience with trans* communities in meatspace or online, and that's partly because of some of the identity issues you touched on. The one time I went to a trans* support group, I felt kind of excluded because most of the other men there seemed to be living the dominant narrative of True Transness: they knew from childhood that they were trans*, they were straight, their behavior/personalities fitted pretty well into conventional masculinity, they looked conventionally male thanks to hormones and/or surgery and weren't at risk of being misgendered. None of that is true for me. I could see something like a binding community being less intimidating, more open to people who, for example, are still in the process of working out their identity, or people who are trans* but don't necessarily want to adopt conventional gender roles the way trans* people are still pressured to do, or who (like me) have body shapes that are hard to reshape into what would feel right. All this in addition to being welcoming of nonbinary etc. people, as you mention.

There's still a role for communities based on gender identity, I think--for instance I can absolutely see why trans* women would want to be able to have communities without men in them. Trans* women's and trans* men's issues aren't identical, and sometimes we need to focus on particularities. I guess ideally there would be a lot of different kinds of trans* communities, so that we can support each other without any pressure to fit into some One True Way.