Holger, Thank you for your bug report and for the advice. This is somehow related to #621833 [1]. It seems the conversation is against removing users at all. I'm going to comment out this line unitl mentioned bug is closed.
[1]: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=621833 -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]

