Many refer to it as a social media website driven by user-submitted content, but I'd like to refer to it as the place where time goes to die.
In all seriousness though, it's just a social media website driven by user-submitted content. Only reason I mentioned it is because a do spend a lot of time there now and then, just thought it might be interesting to have a subreddit dedicated to UCP there. In fact, I've just created that very subreddit not too long ago, though I have no idea what I'm doing to be completely honest