I wanted to say that I'd accept this Jax is trans bullshit if Gooseworx himself said it, but have changed my mind. I agree with those of you saying he's clearly just fucking with people. Zooble is a very clear metaphor for trannies, repeatedly hammered home, yet none of that is present for Jax.
It's also funny how some of you are insisting on this while at the same time not noticing much more obvious things. Ragatha put on the headset because she was a realtor trying to sell the building, and the first thing she says is a plea for help to those who were around her when she did. It's not spelled out beyond these details because it doesn't need to be. It's never explained why Gangle and Zooble put on the headset, but four out of six isn't bad, and some vagueness works out well.
Anyway, I think one good interpretation of the show is as follows: Live in the digital world where nothing matters (until it does anyway) while stewing in the past, or step away from the machine and live a more fulfilling life by actually doing things in the real world to move past the past. The penultimate episode was the best one.