Perhaps this is not the right place to discuss this, but I have been surprised by the low general quality of answers (and questions) on Quora. At least in the topics I follow - philosophy, writing, clothes - the answers are often factually wrong, parochial or common opinion (rather than knowledge). There is no real criticism: instead of pointing out the obvious flaws, commenters usually just add that yes, they agree…
You should follow more topics and/or people. That would get you a better variety of content in your feed.
Without knowing much about your interests, it's hard to know what to recommend specifically. But if you check out http://www.quora.com/browse and look around, you may find more answers you like; then follow the topics, or the people who wrote those answers.
If you're interested specifically in answers with vigorous comment threads, try following http://quora.com/Politics or maybe specifically http://quora.com/Gary-Teal . Or anything to do with startups.