I haven't much to add to this, but I found the discussion really interesting. I find 'cis' a helpful, neutral term to refer to people who (like me) have a gender identity matching that they were assigned at birth and who do not experience gender dysphoria. As far as I understand it, that's all it means, and that encompasses quite a range of gender identity. (Which is, of course, not to say that there aren't people for whom neither cis or trans quite works as a self-descriptor.) I hope it catches on a bit more widely, and stops being seen as an 'academic' term.