My point is that I think that the 'trendy diagnosis/ self diagnosis' thing risks putting people who perhaps need help off just as much as it might encourage people to come forward. Especially knowing the cost / length of waiting lists for it as a result of a whole new industry springing up.
Absolutely agree with this RedToothBrush. Nobody wants to feel like a bandwagon-jumping trend-follower, and as the owner of a few current and erstwhile trendy labels myself, I've been through that exact thought process when considering whether to request assessment, both for ASD and for ADHD.
I don't actually think of myself conceptually as "having ADHD" — my experiences and traits can fit the criteria, but it makes more sense to me to consider them as part of the ASD (which was diagnosed several years prior); many things I do or experience can occur in either disorder, or would be given one name under ASD, and another under ADHD. The drugs can work for certain issues whichever diagnosis you have, but in the NHS you need an ADHD diagnosis for stimulants, so I sought assessment, described my difficulties within the ADHD framework, and gained another initialism. Essentially, I swallowed my discomfort at potentially being seen as a mindless trend-following poser looking for excuses and a way to feel special, so I could get the drugs.
Of course there are so many adults who would meet criteria if assessed, but who are undiagnosed because of changes in our understanding of these conditions, that I'd imagine few of those seeking adult ND diagnoses are trend-following posers. But in a world where people titter, "Oh everyone's got ADHD these days! It's all these phones and TikToks and wanting an advantage on exams, and not enough Proust and hard manual labour," it's hard not to let that affect how you feel about seeking diagnosis.
I guess increased awareness and publicity about a disorder is always going to lead to parallel increases in undiagnosed people suspecting they have the condition and perhaps seeking diagnosis, and possibly unaffected people confidently self-diagnosing or self-IDing.