Anytime I've gone directly from living and dying by scale numbers to "not caring" about scale numbers, I've eaten like an idiot, one who still cared vary much about weight, and was very conflicted, and felt like I was getting away with something, but knew it had to end, probably badly. This is not an effective mindset. LOL It's not intuitive eating. It's dieter rebellion.
An effective way of not caring about weight (and truly not caring about it), is to stay focused on performing well and looking and feeling amazing. Some people would leave the "looking" part out of the equation, which is fine, but if it's still there it's better to acknowledge it! Being a healthy, happy, fit person is one of my values. The revelation is that the look/feeling is not attached to a particular scale weight. I can be heavier and leaner. I can be heavier and feel better. I can be heavier and still comfortable in the same clothes, or smaller clothes. OR, I can be lighter and softer, lighter and more miserable, lighter and hating my food/life/body/clothes. A lower scale weight doesn't necessarily solve something, just like a higher one doesn't necessarily ruin something.
Somewhere in the IE book they talk about the misery of eating "whatever you want" without attunement to hunger/fullness/satisfaction/gentle nutrition. If you're frequently eating for other reasons, like the ever popular "because I can," it's not actually going to feel great. But it's an easy fix with simply being more mindful of what does feel great.