For multiple warnings over the last four months, and a warning following a suspension, poster DerekMichaels00 is banned.
http://boards.straightdope.com/sdmb/showpost.php?p=20129198&postcount=475
http://boards.straightdope.com/sdmb/showpost.php?p=20045713&postcount=186
http://boards.straightdope.com/sdmb/showpost.php?p=20001333&postcount=76
http://boards.straightdope.com/sdmb/showpost.php?p=19874577&postcount=34