One admin was discussing the deletion of the main page in IRC and asked if the technical ability to delete pages with over 5,000 revisions, like the main page, had ever been re-enabled. Another admin (jokingly) commented that he had tested it and found that the main page still couldn't be deleted. The first admin thought he would test it for himself. The main page got deleted.
You might think you are having a laugh, but sometimes, the joke is missed. If you find yourself having to say "jokes do not come across well here", you are best off having avoided the joke in the first place.
In other words, do not even joke about causing disruption – someone may miss that it was meant in humor or sarcasm and act on it.
Following this incident, the vulnerability was addressed. If a person tries now, they should receive the message shown above: "You cannot delete or move the main page." This is not an excuse to try to delete the Main Page; the deletion might work!
^This was not, by a long stretch, the first time the Main Page was deleted. See its deletion log entry. Some resulted from the involved administrators' accounts being compromised. For example, the deletion as of 05:08, December 8, 2007 – which resulted in a desysopping – was apparently the account being used by a relative after the admin failed to log off, and the incident as of May 7, 2007 was the result of a password hack. In total, the Main Page has been deleted 16 times. (Yikes!)
References
^"I deleted the Main Page". Wikipedia:Administrators' noticeboard/IncidentArchive363. Retrieved 21 February 2010.
