Well, I have seen folks have a wide range of reactions. Everything from "I have ADHD too!" to "ADHD is a fake disease and just a way for lazy people to make excuses."

ADHD needs to be understood and destigmatized and I do talk openly about ADHD (like now) but it's just something I don't volunteer about myself in my professional life.

n.b. when I say "career suicide" I could have used a better choice of words. I wouldn't ever say that mentioning would torpedo your entire career. But it might be bad for your career at a given company IMO/IME. Depending on who reads it and how neanderthal their views are.