I have mixed views.
Yes - in general being open is a good thing. It's surprising sometimes to think you are the only person or family that you now of dealing with an issue - and then learn that it is more widespread.
But.
My view is that we have issues like Autism, ADHD, and Dyslexia where there are bandwagons that kick off where everybody seems to have it and has to talk about it - and the risk is that those with less of a voice and who have more substantial issues are effectively pushed out of sight.