https://www.lexico.com/explore/how-many-words-are-there-in-t...
That sounds like an impressive project in itself :)
I think that page doesn’t exist. patrickthebold wasn’t sarcastically mocking people who were too lazy to look up that page. He was just making the point that as soon as a hypothetical list like that was uploaded to Wikipedia, it should be deleted, since those words would then be words found on Wikipedia.