4 pane comic of dolan on the left and spooderman on the right
pane 1 (dolan): cum join opensurce cummunity!
pane 2 (spooderman): shure! how joyn?
pane 3 (dolan): Here discord! (with discord logo)
pane 4 (spooderman with tears in eyes): y u do dis?
It's real-time chat. That's fundamentally different, philosophically, from the way a forum/wiki works.
You can cludge forum-like features into it with stickies and bots and yada yada yada... or you could just use a platform that is designed from the ground up to be a permanent knowledge store instead of extended, glorified AOL chatrooms.
Discourse is a forum software. Maybe you are mixing it up with something else like disqus?
I thought they were talking about Discord. Discourse should rename itself for its own sake. It's easy to get it confused with the two junk.