I find it fascinating how these days companies can charge bizar amounts of money for things we have enjoyed for free for decades. IRC is a perfect solution and yet people buy into slack - itself an IRC rippoff with an OK web interface included.
Same with Office Products. Office365 costs 40 Euros per seat and month. And people are actually paying for this. Imagine Microsoft coming up with such a thing in the 90ies. People would've peed their pants laughing.
It's fascinating the way our entire society is being brainwashed into access culture. Scary but fascinating. Like sheep. And they don't even notice.