If your core business product is content contributed by users... I'm turning to the opinion that you need a C-level ombudsman- / dean of contributors-type role. Whose sole job it is to (1) figure out what contributors are thinking and want & (2) advocate for them inside the company. Every contributor-driven platform has eventually jumped the shark, and all in exactly the same way. Management begins to take contributi…
Do you think Wikipedia has jumped the shark? Obviously not perfect, but it's certainly a lot better than Quora in terms of accuracy. It's been around for a very long time and it doesn't seem to me like quality has decreased.
Edit: to be clear and re-iterate, I never said Wikipedia was perfect, just that it has a certain baseline, generally above where Quora is, and hasn't seemed to decline over the years.