problem I sometimes see is even if "electronics geeks" have project pages online, there isn't always so much collaboration, or information sharing.
There are so may projects doing the same things ala https://xkcd.com/927/
I think some real initiative to standardise common projects, and make them explicitly communal, with the creation of tutorials as the main focus, would do wonders.
I see sites like hackaday.io, for example, and it is all descriptions of personal projects (most unfinished, or early on), and the problem is rife.
A better medium is perhaps "instructables", where the focus is obviously to instruct, and the average quality (result over finesse) encourages sharing, even of unrefined instructables.
incidentally, do you have a project space? Some of those ideas you are working on are interesting, I'm working on a few myself, in collab with local hackspace.