It also does some shady things to increase engagement. I sent a Quora link to a friend, she created an account to be able to read it and the next day I got an email from Quora that she followed me (it also said that she is already following four other people). In reality, she did nothing. She just read the article, didn't follow anyone.
On June 4th I asked Quora to permanently delete my account. When I started reading answers there, I don't think you had to "sign up to read" as the front page now requests (without an account). It's gradually escalated what's required until I just found it too onerous to participate. I don't want to share my interests with them and I certainly don't want to share my contacts list with them.
I'm probably an outlier but I really only found a couple interesting questions a month, so I don't think I'll miss Quora.
