They're not the most... reliable of sources. Somewhat lazy, but who isn't, right? Anyways, I see more "news" articles about Kim Kardashian's ass or Justin Bieber's flings with hookers and other celebrities who should know better than to hang out with him (etc.) than I do... well... actual news. The articles, of which, barely have anything in them. Whether they be about Kim Kardashian's ass, Justin Bieber's flings, or the situation going on in Russia.
At least, that's what I see the majority of the time, though I'm probably not looking hard enough. Usually, I just scroll right down to the comments. I guess I just don't care enough, either, to change from Yahoo! to something else. Laziness, you see.