Seven more pages, which I've read all of since my first off the hip post, and while I still stand by that sentiment (in game representations, including comms, of the characters we are playing should not display IRL/personal info, for both role play and security reasons), the conversation has brought me some other thoughts as well.
Long before I was ever aware of non-binary people (not long ago) I already had years of experience playing video games with people online, and the farther back I go the more common it was for people to value their online anonymity. I knew these other people as their avatars at the least, and mostly as the characters they played. Most of the time I never learned a single real life personal identifier of any sort about them. Crossing that bridge from anonymous person I can turn off with a switch to a face, name, and personal info of another human was viewed as an at least somewhat solemn decision.
There was on occasion of course, times in which I would be talking about a person and wanted to reference them instead of their character that I knew them through. Not knowing if that person was male or female (at the time, so far as I knew, the only options that existed), and with very little thought to the topic at all I would simply refer to them as they or them. I did not do this out of social pressure. I did not do this out of fear of offending anyone. I did not do this to cater to anyone. I would have never guessed I was a short time away from they/them being preferred pronouns for some, and probably would not have believed it if I could have looked through a crystal ball into the future. I simply did it because I didn't know (or care) if they were a he or a she, so I went with the most accurate term available.
What I am trying to get at I guess is that before I had ever heard any of the jargon or arguments of this issue, I had already made my own decision on how to handle referring to someone through pronouns when the situation arose and I did not know that person's gender. I used they/them, and it was a near meaningless choice to make. I don't know why that should change now. I also don't know why it should be implemented into the game.