More posts about nice things and things to make fun of, fewer posts about horrible crimes that just make you depressed and angry. I'm not even really talking about politics, riots and obscene levels of idpol threads, though they can definitely be a bit much - I mean when there's things like a spate of posts about kids or animals getting tortured or killed. They're not fun.
There's certain threads which have just become MATI sperging without any joy, but that's a subjective line. But I think it's a bit more clear cut when there's just sadbait or ragebait waves.
Or, in case that's too serious of an answer: kys faggot.