I mean, Slack isn't federated either. I don't know of any chat platforms that are federated except Jabber. edit Gchat and AIM federated in 2011, but AIM is dead

I mean, Slack isn't federated either. I don't know of any chat platforms that are federated except Jabber. edit Gchat and AIM federated in 2011, but AIM is dead now, so...