When I'm doing an online search and the top results are from quora I know I'll be disappointed. The result will be on topic but the information will be the same kind of one person's faulty rambling kind of thing seen in this post here. There is somewhat good content on Quora, it varies, but it seems to be way more miss than hits. Information from Quora is usually about as good as a hit from some old PHPBulletin forum.
I tend to respond obnoxiously to comments that are themselves obnoxious. If you check my history on both Quora and HN, you'd see that I am much more active on HN than I am on Quora. I tend to use whatever medium gets the job done. Best tool for the job and all. When you actually start submitting things at all to HN, send me a message so that I can learn from the best as to what the "proper way" to do things are.
The post got a lot of views, so I would call that a success. Not sure what point you were trying to make there.