I think "folx" is supposed to riff on people who insist on making linguistic revisions that nobody was even asking for. I have never seen it used seriously.

This can be a slippery slope though, because there are a lot of people who live in a bubble. You end up with absolute goblins like Bill Maher saying "Stop trying to make Latinx a thing. Nobody wants Latinx to be a thing," which might be true, but he'd be the absolute last fucking person to actually know that.