I can eat several cups of coconut oil, almond butter, or sour cream (full fat) and not feel full. Same story with avocados and nuts. I don't feel satiated even after eating a big fatty steak. So I tend to overdo fat in my diet, and I think this is why I gained weight on Paleo.
I think my satiety signals respond better to the volume of food than the fat content. Smoothies work really work for satiety for me. Green smoothies (spinach, tomatoes and some berries) made with water fill me up really fast. Two cups of green smoothie with little fat makes me feel really full. Two cups of cheese/sour cream/almond butter will not have the same effect...
I know fat doesn't make you fat. But calories still count. I just think I consume excess calories from fat sources, because my body is not able to recognize the signals from fat for some reason.
Why don't I feel full on a high-fat diet? I eat plenty of protein (100-150g). Do you think I have abnormal gastrointestinal satiety signals? For your information, I am 23, female, 5 ft, 129lbs. I recently gained about 10-20 lbs on Paleo.