It's already self-hostable witha single-client connection ability, and there's ongoing work to make the Fluxer site and all of the self-hosted servers able to federate (with a prototype planned for the end of the year)

Fluxer has special "forum" areas that are meant to be searchable on the global web, and discussions in chat channels are private. Which is a much better approach for that issue than Discord "make every message from public servers searchable" imo.

Oh, that feels much nicer.

The issue is that we only observe one dimension of time and three dimensions of space. So allowing more than that would require a lot of evidence.

Postulating that there's multiple times dimensions is the same thing as postulating that there's more than three space dimensions in string theory. You make the maths "easier" by postulating that there's more dimensions, but you don't make any predictions that the 3+1 spacetime theory doesn't make and that can be observed experimentally.