The amount of bad food/news in the world has increased exponentially in recent history due to the ease and low cost of production and distribution.
But like we've seen with food, the more unhealthy options proliferate, the more of a premium there is for e.g. home-cooked, organic meals. I like to think that Hacker News, on most days, is my source of healthy and nourishing news, and it's up to me to discern and sift through the junk that might occasionally get mixed in.