VirtualDub Trademark Troll

trifish writes: The author of VirtualDub wrote on his blog that 'someone has registered "VirtualDub" as a "word mark" in Germany as of June 6, 2006 and is now sending out notices to people in that country demanding money for so much as mentioning the program and linking to the SourceForge download from their website.' Well, I confess that only now I fully understand why Linux, Mozilla, TrueCrypt, and other open source projects register their names as trademarks.