In this question, cnst tried to edit a question on SO and was responded with
× Body cannot contain "http://www.domain.com".
Please use example.com (or .org or .net) for fake URLs. More info:
http://meta.stackexchange.com/questions/208963
I posted an answer quoting Shog9's answer.
The reason is simple: Blacklisted domains should not be posted, and should not pass when edited. But how was it posted? The SO question was asked on Jan 20, 2017, but Shog9's answer was posted in November 2013. Had the blacklist failed for as long as 3 years or what else happened?