Slack also makes no sense. I need a different login for different channels?

Slack is huge in the corporate world more than a gaming or casual chatting tool and I assume separating identity / login credentials between different channels makes some sense in that case for both security and privacy reasons, but also just conceptually.

The upside of doing this way for Slack is that it's one way to not expose your account ID to every member in every channel you're in, the way that Discord does. Better for privacy compliance.

You can still have multiple accounts on Discord to achieve the same separation if you want.

From another comment:

> Sure, you can make a brand new account, but that's easier said than done, because:

> 1) You can't be logged into two accounts at the same time on the desktop. You must use different browser profiles or a similar sandboxing method. Definitely out of the question for mobile.

> 2) No way to transfer your old servers, friends, roles, etc, to a new account.

> 3) Making a new account isn't always a reasonable option even if you are willing to lose all of your old data. Moving from one role to another to another in a gaming career often is done gradually through connections and community (but that doesn't imply you should have to be forced to expose your system username and user id to everyone everywhere).

> 4) Even if you do make a new account, that new account might get disabled automatically until you provide a phone number. Throwaway numbers don't work.

It makes sense for versatile use cases. Discord's single account system is maybe fine for gaming but it's pain for other use cases.