[GeoAtreides]

It's not Meta that would sue them (although they would), it's the copyright owners (the users) that will. Photos or comments, the User retains copyright on their content, and only license it to Meta or YC for specific purposes. Yes, that means Meta/YC and their affiliated companies can use the content for other purposes than displaying it in a browser, but 3rd parties 100% can't.

[senordevnyc]

Well, are you going to sue? Are you going to sue Google and Bing and whoever else? Have you even bothered to contact the people at Airtrain to ask them to remove your content? Have you contacted HN to have them delete your account and comments?

Or are you complaining here (ironically) to make a point, but you don't actually care that much?