OMG, setpoint theory used to enrage me! How DARE some pointy-headed, probably fat scientists imply that I'm not in complete control of my body and weight at all times! Anyone who can't maintain any weight they want is just weak! Yes, I was a dunce living in a painful dunce world. :-) The idea that my body might have some say in what it was willing to weigh was too scary to contemplate. Here's the thing though. That's not terrifying. It's a relief. Living in that "rainbows and unicorns" range means that you don't have to fight anymore. Weight is a non-issue. Your body handles it for you, seemingly effortlessly. Eat more, and you're less hungry and more fidgety later. Exercise more, and your appetite comes up accordingly. Eat to meet it and everything stays the same, like magic, without counting calories, weighing food, earning carbs, or any of that craziness.
Based on my now very sporadic weigh-ins, my weight has never been this stable ever. Total flatline. I follow my feel-good habits. My body balances appetite and intake accordingly. My clothes fit. I still look like a muscley fit person. Only now, if you take me out to breakfast, I'm going to order bacon and waffles, not egg whites and spinach, which, especially to dieting friends and relatives, makes me even more mysterious and annoying. LOL