Because there are a lot of people outcast from reddit that think everyone is out to get them, most of the stuff on the major news subs is paranoid/conspiracy/similar and probably brings down your outlook on life if you read it regularly. The world really isn't such a dark place. If something destroys humanity, it'll be a comet that we didn't see coming until it was too late, not a barbie doll that can connect to the internet.
Now, I'm not saying that having everything connected to/dependent on the internet, or having cops that shoot people for no reason, or whatever is GOOD, I'm just tired of it being every fucking post on here. I feel much better in general now that I have those "we're about to have doomsday" subs blocked.