A friend of mine showed me something weird a few years ago which was a peculiar section below Daniel Jame's wikipedia biography call The First Church of the Grey Goo. It may very well be a joke that has survived since it was added to the wikipedia article in 2015.

So Cleaver is The First Church of the Grey goo real? is it a joke? how do I join?

https://en.wikipedia.org/wiki/Daniel_James_(game_developer)