> Stop dumping knowledge into a black hole. Use forums. Use the open web.

I feel like there are two discussions to be had:

(1) Discord as a commercial platform vs. open web; (2) Discord as an IRC-style platform vs. forums.

For me, only (2) is about the point of OP of "dumping knowledge into a black hole". It's a black hole because it's IRC, not because it's commercial.