Vandalism

Vandalism on a wiki editing the wiki's content in an intentionally disruptive manner. Vandalism includes addition, removal or modification that is degrading in any form of way.

Examples

 * 1) On Wikipedia, there are tons of vandalism incidents:
 * 2) In May 2005, a anonymous user vandalized American journalist John Seigenthaler's page to add biased information that "he was the assistant to Attorney General Robert Kennedy in the early 1960s, and was thought to have been directly involved in the Kennedy assasinations".
 * 3) A user named "Willy on Wheels" vandalized renamed multiple pages on the site so that their titles ended with "on wheels".
 * 4) On April 2018, several pages related to video game director Todd Howard were vandalized after he stated on Tumblr that his page would no longer be semi-protected on April 25.
 * 5) A user named "Rick Astley" vandalized replaced content on pages on the Tiresome Wikis Wiki with the lyrics of the song Never Gonna Give You Up.

Why This Practice Sucks

 * 1) First of all, it makes the wiki look biased or more of a joke rather than being helpful.
 * 2) Because of vandals, it caused several pages on wikis to be protected and can only be edited by the wiki's staff.

The Only Redeeming Quality

 * 1) Some acts of vandalism can be pretty funny.