From Hack Forums Wiki
Hack Forums host an annual event every year for April Fools. Each year, Omniscient would think of how to prank or mess with the members of Hack Forums. Founded in 2009, this has been a running event, each time, getting more complex or vivid than the year before last. Some of these included hot topics such as FBI Seizure, Rep Fucks, Applying for mod, and even rep resets.
Below you can find a list of April Fool events that have occurred and been documented.