I can relate, and feel the same way. It sometimes feels that I am reliving the years when our sons were adolescents, and they refused to consider that someone else may have some wisdom forged from living through the experiences.
I particularly become concerned when there are posts which give medical advice to others, and the poster possess no professional credentials to do so.
Some things will never change. And like you, I ignore most of the posts which ask for medical advice and the responses of those forum members who are unqualified to render them.
I rarely post anything on the main forum any longer for those reasons. Thank you for sharing these most valuable insights with others.