I add heaps of oil, and never have trouble cleaning my stainless steel pans.

But the whole “clean eating” thing seems to vilify any kind of cooking fat, and guests often give me the “guess we’re not on a diet today”. But from what I recall, cooking oil is not the thing driving the obesity pandemic, and the innocent muffin they had at work would easily be several multiples of the cooking oil, calorie-wise.

people are eating too much, plus sugar is really bad for humans and that's what is everywhere. Most of the danger of fats is gone with the vast reduction in amount of hydrogenated fats out there. Sugar is still king though.

With a well-seasoned pan it mostly comes down to temperature control