Well Discord has become more than just Vent server alternative, people use it for more than just game chat. There’s a lot of local communities that have discord servers and use them to organize events and chat, and so you end up knowing a bunch of people through discord. Alternatives can be difficult in that circumstance. Like sure you can get their phone numbers or whatever if you know them well enough, maybe start a group text, but it doesn’t necessarily equate. If you run a server I can see it being wildly difficult to move a whole community off of Discord and getting people to use an alternative platform. Personally I’m all for moving to Matrix if I can convince my D&D group, but those local communities, the only option is to basically to drop out of them and lose connections.
Saw one of them wave when they were setting up and was like oh shit those are people, but then they didn’t move at all after that. Wild. I imagine it made getting the set on the field and setup/takedown easier