I agree! It would be helpful, I've noticed a lot that beginners often seem to have a hard time finding information like this even despite it being available somewhere.
One concern I have is getting to much information out there... right now there is the wiki, a huge volume of add-on's and samples within them, ported examples, YouTube videos covering a huge range of topics, a seemingly endless supply of forum threads, custom actions, the expanding ecosystem, online courses featuring play maker, starter kits on the asset store, etc...
I think to a beginner this is overwhelming. There may need to be a more clear, obvious place to get information but I don't think there is a lack of it. There are often requests for new stuff that is just around the corner and already existing, it's just a matter of finding it. I've been wondering about how to fix this for a pretty long time now but it's kind of tricky to figure out if there is a legit lack of information, if it's unclear, or if the person is simply having a hard time finding it. If there was even more stuff, would it be even harder to find what you want? Would a better archive of sorts help with that? There's also varying skill levels to think about. One topic might be something a beginner is trying to understand for the first time, but an advanced user is trying to polish or look at varieties of so the content had to be simple enough to let the beginner absorb but the advanced user not get bored over... It's tricky! And can bloat the available resources if not done right which makes it hard to find precisely what you need.
Anyway, maybe slightly of topic and kinda wall-of-text-ish but I think it's applicable and food for thought on this topic.
