Well that's kinda vague. For some people, having 2 packs of cigarettes, they feel great and appear to not have problems. In fact, there might not be apparent problems, but that doesn't mean it cant hurt you.
Even though, I kinda agree with you.
But are you saying, for instance (in Peat's world), if I feel well consuming PUFA, should I continue?
It is vague. I don't agree that if you feel well eating pufa you should continue but for some and myself included, I know that what I ate before discovering peats ideas and reccomendations I was in much better health and shape than I am in now. I guess you can take or leave what you want from it?