Watching history repeat is great. I think you should do it, you will pick up some new things for sure and a lot of great old stuff.
My only comment is that most of the wiki type things I have seen are about stuff. Stuff like laminates, woods, strings, sizes. Which is not a bad thing even if the wikis do get a bit opinionated. I would recommend a focus on music and what you want to do with the uke in a communication way, not forgetting the stuff, but helping new players realise they have purchased a versatile musical instrument that is about having lot of fun and communications. The stuff forms a body of great talking points when you run out of music or are in a place where it is not possible to play or you need a rest, and then you go back to the music. And you do need to know some things to be able to get a uke and get started. Some examples are some song writing pointers, some permissions to play what you feel like, maybe a sort of time line syllabus thingy for going from starter to good player with some activities etc. So the timeline syllabus is an outline of a path to good playing and the index to the wiki, instead of an alphabetic list of stuff. Maybe like a game format, with levels you can reach as you get better, or an app.
You win the app or game by becoming a free thinking independent uke player, confident to play whatever you like whenever you like, even if you are not a virtuoso yet.
End of brainstorm. I hope there is something useful there.