More and more content on YouTube includes misleading content (creationism, flat earth, niburu, planet X, Chemtrails, moonlanding-hoaxers,....).

The idea is to let these channels exist, but to exclude them from add revenue and other forms of advertisement income. So the point is not to shut them down, but to decrease or eliminate the add-revenue.

So it's not about censorship, it's about not sponsoring misleading content.

More on the topic:

https://debunkingdenialism.com/2017/07/05/why-both...

http://skepp.be/nl

https://www.theguardian.com/higher-education-netwo...

https://www.livescience.com/24310-flat-earth-belie...

(image credit: By Anonymous - Camille Flammarion, L'Atmosphère: Météorologie Populaire (Paris, 1888), pp. 163, Public Domain, https://commons.wikimedia.org/w/index.php?curid=31...)