Yes, something is off with Google's ranking of Quora pages. On many topics reddit have more relevant content but Quora turns up higher on search results.
I dislike it when the top result of my search is Quora. My knee-jerk reaction is to add '-quora' to the search term.
On the rare occasion that I click on a Quora link, I am immediately harassed by a nagging registration popup, further fuelling my hatred of Quora and immediately pressing back and appending 'reddit' to my search term.
And from that comes traffic, which I’m guessing they must be monetizing.
It’s the new “Yahoo Answers”