Are there any #Slack users here?

I have a serious question: Why?

Far as I can tell, it is not only a way to give a US corporation full access and control over your most crucial communication patterns.

It is also really confusing, complex, hard to administrate, and riddled with "insert coins to continue" traps.

And I haven't found anything that it does better than alternatives that are decentralised and more secure.

But I know people are using it.

Why? What am I missing?