I find I have to flag/hide about a third of the front page every time I visit to filter out the really boring dreck. Most of it comes from a couple dozen of domains, like npr, guardian, washpost, nytimes, nature, cbc, cnbc, newyorker, atlantic, etc, which does make the filtering easier.

The biggest thing is just that after so many years here, there's very little new to discuss; most topics have been beaten to a bloody pulp, and you know what people are going to say before you even read the comments.