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.