It just seems to be the way of things. There's an inherent value in being yourself without feeling the need to hide, and via the process of de-stigmatization, more people are comfortable coming out and expressing that they are what they are, and because of the de-stigmatization effort, those people are uplifted. And in turn, other people who want to feel special and want more social capital will either imitate it or try to get diagnosed themselves.
The "my ADHD brain" stuff isn't my thing, though I am pretty sure I have an ADHD thing that's so mild it doesn't quite qualify for the second D, but I have a heavily ADHD spouse, and she likes them. I think it makes her feel less crazy/dumb for doing the admittedly sometimes amusingly boneheaded things she does, like bashing her arms and legs into things or making tea and forgetting it a moment later. But also she has grappled with how that content flattens ADHD into, her words, "quirky ditz syndrome" and much rarely goes into the darker aspects she struggles with, like being completely unable to accomplish a basic task for hours on end and getting increasingly frustrated with herself, or her "zombie hours" when she gets absolutely stuck in her phone (I eventually helped her setup parental controls on iOS to boot her off after awhile, but even that being couched in things called "parental controls" is humiliating for her).
The "my ADHD brain" stuff isn't my thing, though I am pretty sure I have an ADHD thing that's so mild it doesn't quite qualify for the second D, but I have a heavily ADHD spouse, and she likes them. I think it makes her feel less crazy/dumb for doing the admittedly sometimes amusingly boneheaded things she does, like bashing her arms and legs into things or making tea and forgetting it a moment later. But also she has grappled with how that content flattens ADHD into, her words, "quirky ditz syndrome" and much rarely goes into the darker aspects she struggles with, like being completely unable to accomplish a basic task for hours on end and getting increasingly frustrated with herself, or her "zombie hours" when she gets absolutely stuck in her phone (I eventually helped her setup parental controls on iOS to boot her off after awhile, but even that being couched in things called "parental controls" is humiliating for her).