There's another factor that I haven't see mentioned: I have no interest in most sections of the news. And even if I select only some kind of news, say "computer

There's another factor that I haven't see mentioned: I have no interest in most sections of the news. And even if I select only some kind of news, say "computers" I'm not very interested in consumer's hardware or commercial programs including apps or games, just programming, security and little more. But social media live on ads. They tend to promote contents that cater to wide audiences. If I'm only interested in a few niches, social media are a big waste of time. The contents and the discussions around them.