Nelson Pike has been suspended after having received four warnings in less than four months. His response to a previous warning by PM also indicated he was not interested in following the rules.
Warnings are here:
http://boards.straightdope.com/sdmb/showpost.php?p=19219559&postcount=62
http://boards.straightdope.com/sdmb/showpost.php?p=19242841&postcount=38
http://boards.straightdope.com/sdmb/showpost.php?p=19513651&postcount=16
http://boards.straightdope.com/sdmb/showpost.php?p=19515428&postcount=30