There shouldn't be "a community" there should be multiple communities, otherwise there will always be an 'in crowd'
Second issue: quora has a multidimensional filtering problem and this goes back to point 1. There will always be an element of digg/reddit/4chan in everything. To try and remove it is futile, just try to keep it discernable from the content you care about, maybe the 4chan stuff is your bag and you don't want the high brow shit, so be it ...
There shouldn't be "a community" there should be multiple communities, otherwise there will always be an 'in crowd'
Second issue: quora has a multidimensional filtering problem and this goes back to point 1. There will always be an element of digg/reddit/4chan in everything. To try and remove it is futile, just try to keep it discernable from the content you care about, maybe the 4chan stuff is your bag and you don't want the high brow shit, so be it ...