because of a current occasion, we adapted the forum rules a bit and added a new paragraph: http://forum.oxid-esales.com/misc.php?do=showrules
3.7. If you want to have your forum account deleted, please send an e-mail to community[at]oxid-esales.com. In particular cases, the moderators will decide if your posts can be deleted from threads without distorting the content. There is no general demand on having your posts deleted.