The premise of pale is in a sense to know for certain what you can get away with. Most people think they can get away with dietary murder eating wheat three square meals a day, munching of sugar snakes snacks filled with God knows what sort of unpronounceable fillers and downing it all with shots of soy oil. The paleo notion is that without abstaining from foods, you don't know how you react to them. It asks people to learn what they can really get away with. And some people can get away with murder. They can eat what they want. Most of us can't. But this is a know yourself type gig. If Paleo doesn't help you, don't do it (unless you have a predilection for longevity and compression of morbidity).
For me, I can't touch gluten and I do better when I don't touch dairy as well. Eating dairy increases general inflammation and I get a bit of backne (on the upper right shoulder only...). I eat rice, buckwheat, teff and tapioca. My fruit and sugar intake is pretty high but my pufa intake is tiny. When I skew too high on the fat I feel bogged down. I'm thinking about toying with properly prepared legumes at some point.