dataisbeautiful has certainly fallen. A year or two ago I decided to remove most of the feel-bad subs I've subscribed to and replace them with feel-good ones (to prolong my lifespan, obviously >:) ). You can't really go wrong with feel-good subs much, in my experience. I still occasionally go on Reddit to browse my /sub frontpage, which includes certain niches (actually just two that I consider pretty important), with uBO on, and I have also been subscribing to some new subs. My favorite recent discoveries are r/CalvinAndHobbes and r/cpp.