I agree with you on the eliminate grains...but i'm a realist so I suggest to most people eat whole grains instead of, refined, white bread.
I'm absolutist. I'll tell you the right way. If you don't want to follow it, it's not my problem.
The reasoning behind eating several times a day is, it helps to boost your metabolism. It puts you on a schedule and helps you to not get hungry (thus avoiding the snack cravings)
If you restore your leptin and insulin sensitivity, you don't get those cravings. You might actually forget to eat. That, at least, 1) the mechanisms behind this are well known and 2) my friends who have implemented a paleo-type diet as well have demonstrated this. So basically, you're right, but if your macronutrient ratios are in the right place (using whole foods, mind you) it's a non-issue.
Red meat is harder for you body to digest.
I've been -told- that this is not true, though it can be the case for some % of the population. Remember where you heard/saw it?
That's probably true... we bought beef chuck from Costco and the meat pretty much smelled like chicken manure, which is probably what they were feeding the cows. Disgusting, not doing that again.