Earlier quoted context omitted.
I think Quora is a totally different product, content wise. You don't go to Quora for programming help unless it's hello world in php. You go there for /r/iama type of questions. Or it's just my usage, largely influenced by the weekly email.
Reddit has semi-anonymous, unverified accounts. Quora requires FB. Kind of makes it a no-brainer for me.
When you post questions or answer, you can also click the "anonymous" checkbox to remove your name.