I also remember when Z1 employees bashed the members of the forum as well in a few heated exchanges. You will notice most of the vocal people are the ones who have been around for a few years and have heard all the issues in the past first hand Chris, Spee, Myself have all been around for a few years, it is not like the problems have been pulled out of thin air. I even know someone who had a bad experience first hand.
Bottom line is if you are a professional reputable shop you will get treated as such i.e. COZ, SGP, Greg D. or even the non paying sponsors that do install/repairs like Silvertwin, Yugo, Woody75 all get the respect they deserve.