Following two different suspensions, and having received a warning for similar behavior after the most recent suspension, DavidwithanR has been banned.
Previous suspensions:
https://boards.straightdope.com/sdmb/showthread.php?t=857049
https://boards.straightdope.com/sdmb/showthread.php?t=860914
Final warning:
https://boards.straightdope.com/sdmb/showpost.php?p=21317517&postcount=46