They're way too high in PUFAs.
Because if you eat too many, you might not have room for chocolate. And that would just suck.
Because they're high in calories and unnecessary for life. 8 oz of cashews has about 1280 calories. I can feed myself for a whole day on 1280 calories and eat beef, butter, veggies, etc. I think of nuts as bar food.Why limit the amount of nuts we eat?
"Right is right, even if no one is doing it; wrong is wrong, even if everyone is doing it." - St. Augustine
Who says back fat is a bad thing? Maybe on a hairy guy at the beach, but not on a crab.
As others have said, macadamias are better nutritionally than other nuts but I still wouldn't advise too many - not easy to resist, I know - because they're packing a lot of calories.
Meat is Prized, Wheat is Despised.
Real Food - The REAL staff of life
Yep toxins/omega6 etc. etc...
Also two handfuls can be 20% (1/5th) or your daily energy requirements - easy to over eat and put on weight.