Because its zero-effort to make a functional forum (no hosting or backend to be set up) and you have almost full control over the space / it’s isolated from other communities (unlike reddit)
EDIT: I don’t like discord either, but I can see why content creators and the likes would prefer it to other forums
I like to watch twitch streams and play modded videogames (minecraft, lethal company, valheim). Every single twitch streamer has their own discord. Fine I guess, they want control over their space and it’s full of cat pics and tattoos anyway. But the mod makers do the same, patch notes on discord, feature discussion on discord, some even close their githubs and want bugs on discord. I don’t want to be part of your shitty community, I want to know which recolored slime is killing me through walls so I can disable it in the configs. And because the discord search is garbage, I still have to sift through racist memes and wildly outdated info to find what I need.
Why must the man be named Shapiro, my mind keeps jumping to Ben “mr. facts & logic”