Biggie, you don't need to say Whitney has crap taste. Just like I don't think you should accuse Don of knowing some illicit behavior is going on just because he has a friendship and prototyping/building relationship to Cavalli. It simply isn't necessary. Both of them are good guys with good intentions, and you don't need to denigrate them to make a point about Cavalli.
Also, I don't think that I have crap ears or crap taste, but I have always thought the G-Lite and GS1 were somewhat thin (Lite esp.) and so neutral/flat that they were on the sterile side. I feel the same way about the B22 being too flat. I obviously love the BH/BHSE/T2 range, and think the KGSS is very solid upon limited listening. I also like Pete Millett amps and those are pretty neutral/flat as a rule.
One thing I have hardly ever heard is Cavalli's stuff. I would be hard pressed to recall a single moment listening to any Cavalli amp besides JP's Exstata, so I have little to say about how his amps sound. I thought the Exstata was pretty weak overall, it certainly had a lot of problems, and it was easily bested by the BHse and WES that were in the same room at the time. Quite apart from how the amps sound, if they are shoddily built or wracked with problems, then people should speak up. But not everyone will dismiss an amp that they think sounds good just because of build quality and fewer still just because the design is flawed from the perspective of you or anyone else who knows what they are talking about.
Still, from what I have heard I don't like Cavalli's secretive development practices (since the Exstata release, if not before), and I don't like the idea that he is using or allowing shilling to happen. But Don says that NoNoNoNoNoNo is precluded from selling any LF/LL amps, so would that change your thoughts at all? What if NoNoNoNoNoNo is just an over-zealous fanboy who wants to promote something he likes? If it is more than that, like others have said I think that information should be disclosed because the lack of it undermines your position and can make it look like you are trying to bully Cavalli into something by making threats. I understand that you have said you would prefer that things change without having to go so far as disclosure, but it can still leave the same impression of bullying. And I know you have good intentions for the community at large and no financial or other interests.
Finally, I am not sure what behavior you or others think is "criminal" and what law you are referring to. I am not aware of laws preventing people from promoting their goods even by compensating "spokespeople." For your sake and the sake of this site, I think we should avoid making accusations of criminal conduct unless someone has been specifically defrauded, like the case of SinglePower.