Yes it is like Quora, just with domain specificity. I guess you see this as a bad thing, but both sites are tremendous fonts of information. What is preferable to you? Academic papers? Books? Conference Talks? Random Blog Posts? Man pages?
Whenever Quora pops up in my search results, it's generally garbage. You get opinion pieces that a bunch of other people happen to agree with.
Stack Overflow is certainly better. Probably 90% of the time you can dig up the correct answer somewhere on the page.
But it's incredible how much of the world's knowledge is still locked away in books. The internet is ok for computer programmers, but for basically everything else it feels like we're still decades away from the "information superhighway" dream.
