Wow, that's an intense reaction. To counter:
I have installed a few kahlers: the guitars originally had a tune o matic hardtail and with the kahler installed, even completely blocked, the midrange changed completely. From an open voice to a nasal voice: with all other things remaining the same. I and the customer who requested the kahler, had a lot of issues keeping the kahler in tune after a heavy dive bomb. The strings would hang in the roller saddles. Then, the customer all came back to have the guitar retrofitted with a Floyd. Result? The guitar stayed in tune better and sounded better again as well.
I'm sorry, but this is what I experienced. Not once, not twice but 5 times with a direct installation/retrofit, as well as with a dozen or so factory-installed Kahlers.
So, yeah. no. I'm not full of crap. I am talking from my experience. Don't we all do that, to a certain degree? Have an experience, try to see if that experience persists and comment on a question someone posts, based on your own experiences? If you have had great results and you didn't notice any change in tone (or didn't feel the change was a negative one): more power to you, man. Really. But to me, a Kahler is an expensive piece of metal that works really badly. However, I would recommend the hardtail kahler, to be honest. That bridge is amazing and works and sounds great. Would never recommend the vibrato, though.