Skype completely doesn't work for people like Nachos and Mandy. YOLF reported five crashes a day. It's clearly dysfunctional client.
And Discord doesn't work for Franco. Also, Skype would work (for some definition of "work"...) for Names if he was willing to actually make an attempt to get it to work, rather than just steadfastly refusing. His stubbornness doesn't mean we are all obliged to move over to a platform the majority of us don't want to move to.
Yes, Skype is not brilliant, but Discord just doesn't do what we need. The way our chat works means that not reading scrollback is a bad idea, and Discord handles that so much worse than Skype does. It also handles notifications far worse, there's no way I could have Discord notifications active whilst I'm doing something else, they're simply too intrusive.