The fact that so many people on HN seem to hate the Discord UX is baffling to me. I don't get it. Discord's UX is just fine, IMO.

Maybe it's because Discord was targeted towards gamers, and I'm a gamer that had no problem understanding its UI?

If you join more than a dozen servers, yeah it can be a bit overwhelming, but Discord lets you put servers into groups, similar to how phones let you put apps into groups.