This is no way disregards the difficulty of living with an actually severe case of ADHD but is not what most of these people are dealing with.
EDIT: many seem to have misunderstood what I mean by this. I’m not saying these people are only claiming to have ADHD to use it as an excuse. What I mean, is that they may very well do have, and they’re using it as an excuse. Mostly to themselves.
Same basis as you diagnosing yourself with autism / adhd without a visit to the specialist. Oh no wait, that’s just what your original post says. Weird how that happens.
My post doesn’t claim these people don’t have ADHD or that I do.