The Furpocalypse occurred when the first members of the Four Furries of the Furpocalypse joined the Repl.it Discord. Prior to the furpocalypse, the Repl.it server had never experienced the furry fandom. In fact, Leon didn't even know what a furry was and had to ask mat. Because of the furpocalypse, the server is now partially characterized by the furries that reside there.
The furpocalypse triggered an increase in discussion concerning furries, which lead to the furban because Katya didn't like it. The furban was later lifted.