XMPP is pretty neat, judging by my first impressions. Reminds me of the old days... *sip*
Accounts - Name of the local user, you would add them like '@email@example.com'
MUC - Multi User Chatroom, basically, group chats, can join via 'firstname.lastname@example.org'
Client - software you use to access XMPP.
For the time being, I cant make much of a judgement, however if you are on linux, Gajim seems to be a pretty good shout.
Gajim can be found either on your package manager orHere on gajim.org>
Pidgin also seems to be a decent choice on the desktop
Currently registrations are open, I will change this page as that changes.
There is not at present a web based sign up, you will have to email me or try signing up on a client like gajim. Gajim works quite well and so far I can recommend it.
If you do make an account, I will be alerted but feel no pressure, I'd like to think i'm pretty chill, although if you drop me a message to say hi either on xmpp or via fediverse, i would appreciate it.
All you need to do is on gajim, go to edit, accounts,add, follow the steps as appropriate.
So if you need a new account, tell the wizard!
The MUC (Multi User Chat) server is "general.skyshanty.xyz", I have a room created called general that anybody can join (for the time being), feel free to join that one, or create your own via the server
If my answers havent been satisfactory, please check out XMPP.org
I can be emailed here: email@example.com.
As before, I will try to reply quickly, but please allow up to 48hrs