The Great Forum Massacre of 2004 occured on the 24th July, 2004. For about two weeks previously, the moderators had introduced censorships on expletives. Many people weren't very happy with this, seeing it as a community being "Disneyfied" - a result of the band signing to Hollywood Records. Arguments came to a head, resulting in two members being permanently banned, and NerfHerder being suspended for a week. The entire Random Ramblings and Ask Mister Mark sections were deleted, of which only Random Ramblings was restored, and the entire forum went down for a day. After a lot of negotiating in chat, the forum was re-born, with Random Ramblings being a designated Rated R section.

The Great Forum Massacre of '04 is often confused with The Great Purge of 2004