It would be interesting if Fediverse platforms made an external wiki for discoverability. A big shared community resource all in one place.

Honestly, not a bad opinion, when the wikis were done well, they did have some extremely useful information. I wonder if we could do something like that in Lemmy...

Yeah, the wikis came in clutch a lot of times for me. Really well done with how organized they were for the ones that had them.