Clbuttic_01 is a poem written under the constraints of what is known as the Scunthorpe Problem a.k.a. the Clbuttic Mistake.
The Scunthorpe problem is the blocking of e-mails, forum posts or search results by a spam filter or search engine because their text contains a string of letters that are shared with an obscene word. While computers can easily identify strings of text within a document, broad blocking rules may result in false positives, causing innocent phrases to be blocked.
Origin and history
The problem was named after an incident in 1996 in which AOL‘s profanity filter prevented residents of the town of Scunthorpe, Lincolnshire, England, from creating accounts with AOL, because the town’s name contains the substring cunt. Years later, Google’s filters apparently made the same mistake, preventing residents from searching for local businesses that included Scunthorpe in their names.