I sort of agree with you on the surface (who cares if some rando knows I take thyroid meds?), but the ways medical data can be used against you are very insidio

I sort of agree with you on the surface (who cares if some rando knows I take thyroid meds?), but the ways medical data can be used against you are very insidious. Even now that preexisting conditions are history (AFAIK), if your data were public, people could target you (or the elderly) for snake oil cure scams, financial scams (especially if they knew you were dying of cancer), identity theft scams (send you fake bills and steal your money). Anything sexual or psychiatric could be used to blackmail you, all sorts of cruel things could be done, it just takes some imagination.