Carnivore - for men it’s easy they generally love meat fish eggs dairy.

Got boring for me within a week, never before had I found myself craving a salad. It seems to be a diet that only boring people who eat the same thing every day enjoy, whenever you bring up variety they jump on you for treating food as anything but fuel. In another timeline they'd be the same people happily chugging soylent instead of cooking.

Acne goes away, aches and pains disappear.

Didn't happen either, nor on keto. The only thing that fixed the pains was exercising specifically to strengthen the muscular imbalances causing the pains.

no damn vegetables that tear your gut

Sounds like you had a different underlying issue to begin with.