Here are already some short answers.
1. Recurring consumption of small quantities of the same meat can induce the passage of similar antigens every day through the intestinal barrier and we know that only a small numbers of antigens may cause tolerance or intolerance. Contrary to what happen with domesticated animals’ meat, the stop is almost unavoidable with wild game meat. But it is possible that even without being in a protein’s overload, we aren’t well adapted to the repetitive use of mammals’ meat over a long period. It was certainly rare before the development of hunting techniques and then there was bisons or aurochs, which provide a much more violent instinctive stop than our cattle’s meat.
Such theoretical considerations baked by a long experience with a lot of people led GCB to thinks that we should avoid the daily consumption of the same meat during several months, especially the meat of domesticated mammals. It is much wiser to vary our choice of raw animal food and to prefer the meat of wild animals, birds, fish, shellfish, poultry, eggs.
Most of the persons that I know (including GCB and myself!) who have practiced instinctive nutrition for a long time consume some raw animal food (RAF) almost everyday.
2. I don’t think we eat too much fruit. But of course, as with meat, we should prefer the wildest varieties. In principle, for our main daily meal, we start to choose a RAF, then if we are still hungry we choose a vegetable, perhaps a few other veggies, then if still hungry again perhaps some kind of nuts and if still hungry after some elapsed time, a singe fruit species.
3. Yes, we avoid all kind of mixing, spicing, processing. Its only by doing a scientific experiment thoroughly and meticulously that the we can get valid results. We’d better consider our practice as a scientific experiment.
4. I know him quite well and he’s in very good shape and especially healthy for his 78 years old.
5. Yes, we can’t eat a foodstuff we don’t have! So, in case we are hungry and have only a single unprocessed paleo-stuff that our instinct is telling us it’s suitable to eat, than we eat it just like any animal would do.
6. Supplements are not paleo and as long as we have a sufficient choice of good quality raw foods, they are completely useless and even probably harmful.
EDIT: I added a key point that I had forgotten under Nr 1.