you can't honestly be saying that there are no issues with hosting documentation/support for a project exclusively on discord as opposed to a classic forum or wiki.
even ignoring the issues that you are dismissing (and would not exist on a better suited platform), the people using the discord server do not own it. discord servers have no backup functionality. what happens when an admin goes rogue or gets hacked etc? what happens when people get tired of discord for the next chat app?
you shouldn't have to use a burner email to download a videogame mod or view documentation for an open source project.