I would like a "more like this" feature and maybe some voting buttons. The quality is pretty variable, although there are some gems in there. Not sure how you prevent voting from being gamed.
Not sure how to best implement features, so I left them out for now. I think my biggest problem is going to be traffic generation. I am considering making the SPA SEO'able, so that it could possibly start collecting some long tail organic traffic.
This was more of a passion project but if I could find a biz model I'd be super stoked :)