The title of this slashdot post, the refered article and many of the comments seem to be a little miss-informed.
Everyone is refering to evidence whereas no evidence is required or submitted when applying for an injunction (Einstweilige Verfügung) in Germany. To get a German injunction, the submitter simply has to make their claim believable to the judge. There is no need for any evidence... simply statements, references and photos that make the request for the injunction believable. To make matters worse, these injunctions are dealt with by Civil Courts meaning the judges have no idea about technology or design. The submitted believability statements (as they are called in German) are not tested for validity they are not properly scrutinized and they need no real foundation they simply have to be made believable.
The problem here is the German justice system more than anything else. Any justice system that can make such far reaching decisions based on belief is without a doubt not worth taking seriously.
Wouldn't it be nice to see companies actually competing instead of playing silly mafia games with lawyers and judges. A flawed system run by incompetent people simply trying to make some cash based on nonsens instead of doing something productive... Who needs them?