[TheSpiceIsLife]

Maybe there's a market or an app for the 'Freelance Teacher', if there isn't already and I'm just ignorant.

One-on-One connectivity with a (self proclaimed?) subject matter expert, where the subject could be anything.

Things like Reddit and Quora exist, and Ask HN, how to wikis, guide web pages, etc. etc. but one issue I have with the forum style is that it doesn't foster a student-teacher / master-apprentice experience because there's always someone saying "no, that's wrong" -- or something to that affect.

Connecting students with teachers, where 'student' means someone wanting to learn and 'teacher' means someone willing to share experience and knowledge.

Does such an app exist?

[droidist2]

True, also the problem with things like Quora is you end up with dogma or regurgitation accumulating most of the upvotes, like hundreds of answers that say "if you're not paying for it, you are the product."

[lbotos]

Hackhands/Codementor/AirPair are in this realm, but you have to pay.