Digg was my favorite website of all time, what people today can't experience is just how good the community was. I think that was due to the reputation system they used. A sufficiently advanced reputation system would fix a lot of problems with social media, with less censorship.
I have previously created a dating site, social network, custom forums, meetup-like event service, local classifieds, and a few video games. A few years ago as part of a 12-startups-in-12-months effort, I created a basic Digg-like site, livefilter.com. This doesn't have the reputation system yet, but that would be the eventual goal. My first focus was on an efficient, fast, smooth experience. For example, videos play instantly, full screen.
It didn't get much traction, so I haven't worked on it in a while. I haven't touched it in 3 years. What do you think, does it have promise, or should I give up? If people are interested and it becomes active, I'll work on it more.
Most sites you have to click the thumbnail, then click play, then click the fullscreen button. That said, it's optional under settings.