Thank you, I like it a lot too.

I was trying to understand why I stopped using it. I think it's because it's not really actionable. The best you can do with it is understand what might contribute to a certain situation/behavior. If you tell it to a person to whom it applies, they'll just keep creating new arguments to support their position. And it's not a good way of arguing anyway. It's not a real argument, it's closer to an ad hominem. It's not persuasive to the person to whom it applies, though it might be persuasive when told to a third person.

It goes hand in hand with the saying that "you can't reason yourself out of a position you didn't reason yourself into".

Most people don't reason themselves into maladaptiveness, and it takes substantial effort to not only identify the cycle but also to break it.

That's rationalize, not reason.

You don't seem to be making a meaningful distinction. Moreover, both words have been used in this thread.