They still have that policy. There have certainly been issues with it because there are international users (Quora still struggles to cater for users outside US/UK/Australia, though their recent efforts to connect with Indian users are going well) who might have a 'western name' and 'transliterated' name, and the policy sort of breaks down.

I suppose Quora thinks that anonymity will be good enough, but pseudonyms might prove to better in 90% of cases. I think that probably 9 out of 10 uses of anonymity that I've seen on Quora weren't really necessary.