I'm pretty sure Sven recognized himself that he was impolite, but others certainly made him realize that his behaviour was not appropriate on several occasions too. Unfortunately, logs of Debian IRC channels are usually (always?) not available to public, but I follow #debian-kernel at times and didn't miss some of these occasions in the last weeks.He were slandering somebody and others were listening/reading without telling him that the behaviour is impolite? Well, then maybe it shows us all (or at least the readers) in a bad light.