Knowing something well is something, teaching it to others is an entirely different thing.
For example I sometimes see educational type topics in Beginners board that are so bad that are almost misleading while the author may actually know better.

I also don't see the need for anything new in this field. We have multiple independent work being done, from the links @NotATether shared to well known websites such as the bitcoin wiki, stack exchange and this forum and on top of that we have a lot of youtubers making educational video (some of which are good).