I posted about it here http://www.marksdailyapple.com/forum/thread20415.html
Haters gonna hate, what can ya do? Their self-schema is contingent upon hatin', so all you gotta do is state the facts and let them keep on fuming.
Points of contention: Carnosene, carnitine, CLA, alpha-lipoic acid, all highly abundant in grass fed meat, all have clinical levels of positive activity and are not found in as great quantities in poultry and pork. Plus ruminants naturally produce less omega 6. There are some terrible terrible arguments against red meat which I cover in shallow detail in that post and link to some better detail. There is just so much to say about the issue.