It's not only easy to anticipate people looking back 20 years or so from now and saying "and then people moved to Discord, and we have no idea wtf happened after that" or even "dispite being connected through facebook and reddit, there seems to have been a general drop in shared knowlege for reasons unknown to us..."
This is a known problem, I'm not saying anything new but it's amazing (to me, at least) to see just how stark the problem is after having left discord...