Simon McGarr who does a lot of legal work around data, confidentiality and GDPR found out last year that An Post and the Ordinance Survey were collecting data on every household in Ireland through “Geodirectory”, he had a mastodon thread about it here.
As a nerd with regular cycles of bad skin from dermatitis since my teen years I doubt nobody in a community of nerds needed to summon a dermatologist, but we may soon hit the sweet spot of being big enough to have specific expertise in comments without people lying for clout or karma farming!