It was around this time that, in some sense, the quality of the Web as a whole began to decline, with the notable exception of the few crowdsourced knowledge projects that managed to survive. There’s a reason that appending “reddit” or “wiki” to search terms has become an indispensable productivity hack: in a hollowed-out Web overrun with spammers and content farms, these have become some of the last places where real, knowledgeable humans hang out.

https://www.newyorker.com/science/annals-of-artificial-intelligence/how-will-ai-learn-next