Nitpick: the bottom row on the front page shows a discord link, but not their own strafe link. I hope they can add this because of dogfooding.
"Slack" associates pretty strongly with "slack off" (get no work done) too, so that one's also strange.
I think "Zulip" has the best naming of all these.
Meanwhile, “Discord” wouldn’t surprise me if it were a product of the Discordians themselves, a similarly disorganized “parody religion”.
is the completely german-less train-of-thought I could imagine leading to this name
E2E is just not appropriate for handling childrens' messaging.