Well, I *think* these rumors started at B&B with a review by Joel who ranted about his razor. We all know better than to take Joels reviews seriously, he changes his opinion faster than lightning. Well, some of his points may have been okay to note but he didn't even write about trying to exchange the razor or contact the seller...
I'm active on the German forums and I have yet to read a negative review of a Wacker-razor. And I know Heribert is a stand-up guy who's been in the business for a very long time. If there's an issue with one of the razors, you can be sure it'll be taken care of.