Never understood the love for Quora, just seemed to spam Google search results acting like it would provide an answer then forcing you to sign up to actually get what it promised.
Quora, like Twitter, is one of those information networks that are what you make of them. You need to put in the effort to pick interests and people to follow. The service is pretty "dumb" until you have it dialed in. Once you've got it where you want it, it can provide hours of fun or quasi-informative reading every week.
I treat quora links as spam. I've never seen anythign useful there, just obfuscated answers.
I just always see the stupidest questions asked on Quora, like askReddit just 2x worse
I think it's because if you do sign up you get access to the best answers to common tech, higher edu, and startup questions by predominantly people with relevant public credentials.
It's no better or worse than asking questions on HN or Reddit or any other forum, despite what their marketing says.