Glad he brought up Discord's quality.
I'm a bit tired of people saying e-mail/IRC work just fine. Yes, they do, but that's not the point. Discord works better for way over a hundred millions users, many of whom rarely ever send mail and aren't interested in learning how IRC or whatever alternative you use works.
It's like instead of collaborating to solve this issue half of the open source community decided they want to die in IRC, while the other half just straight up gave up. Metaphorically. I get why, but it saddens me a little.
Will have to check out Zulip later.