What is a Wiki Post?

Just wondering, what is a wiki post here, and how do we access/create one?

In the distant past, when dinosaurs roamed the earth and prehistoric roboticists could freely post and edit dankest memes, there was a magic wrench that could unlock the spirit of cooperation and sharing of the secret knowledge…

But it must have been disabled by admins on all the planets of the vexyverse for all but those who have been blessed with the golden leader’s badge…


Are there any here?
(Edit: fixed typoes)