Some of these are hilarious. Favourite so far is https://en.wikipedia.org/wiki/Wikipedia:Long-term_abuse/Chip... > The Chipmunks vandal, also known as the Alvin vandal, adds trivial detail about the Chipmunks fictional musical group's cover versions to song articles, for instance adding a Chipmunks cover version to the Rolling Stones' song "(I Can't Get No) Satisfaction". Not only the Chipmunks but the vandal also ta…
> now adds cryptic rants centered around the number 7 to pages related to the Bible and ancient Egypt.
> Usually editing anonymously from IPs around London, the editor will regularly remove the phrase "best known for" or other superlatives
> Vandalism on articles related to the television show Friends. Persistently introduces factual errors regarding the relationship statuses of the characters.
> In addition, the user changes date formats without a valid reason.
> will begin to insert fake contents en masse on Singaporean television drama pages [...] although it is normally restricted to reverting the page back to its vandalized version
> On 30 June 2015, this person began using IP addresses in Greece. A discussion was raised at ANI. They returned to the UK after two weeks.
> The hoax is that a person named Geraldine Edwards was the last girlfriend of singer Robert Palmer, despite the fact that all the newspapers reported Palmer's last girlfriend to be Mary Ambrose, a living person. Part of the hoax is to insult or diminish Ambrose as much as possible.
> a vandal who uses IPs that geolocate to Indiana to persistently disrupt articles related to the Muppets