[komali2]

Hosting costs makes sense (though last check ours only really pegs out at 4gb, granted that's with about 100 logins).

So far as I can tell, xmpp has no concept of threading, is that the case? It's what prevented me from choosing it when I went with matrix for my co-op.

[SamWhited]

XMPP has threading at a protocol level, just like Matrix (and it has since the early days). I'm only aware of one or two apps that implement it though, and I'm not really sure why that is (maybe it's just a lot of old-school developers who like older IM clients? Unclear.). I really like the way the Cheogram app does this (it's XMPP under the hood) and am hopeful that other clients will see the way they've done it and start adopting it.