Damon KiesowI am on maybe a dozen Slack instances:
Multiple logins
Can’t follow users across servers
Paid version is $$$
Mastodon is easier/better than most of that even in the early days.
Jared 🇦🇺🏳️🌈⚧️👽@dkiesow take a good look at Synapse/Matrix... federated (though not activitypub) end to end encrypted "modern IRC".