I don’t know what to say other than what was said in the article that this scares me on two levels. One false positives are likely and scraping the photos from social media is sketchy to say the least if not should be banned. This worries me
I see your point and understand. I get it. I just feel the scraping is sketchy because it has an air of sneakiness for the sake of profit. A lot of people are naive thinking they are safe and using the services to keep in contact with family and friends. But I totally agree with you last line that, " if you’re uncomfortable with that then don’t post them publicly."
I disagree, they were often posted before facial recognition was a thing and even now, people are not posting them for facial recognition purposes, they are there for other people to see and enjoy, not to be scraped for unknown purposes. I think that they shouldn’t be used for such purposes without the person(s) in the picture giving consent.
That is another point, in parts of Europe, you can only post a picture online if you have the permission of the subjects of the photo. In other countries and much of the USA, AFAIK, you can photograph somebody and post it online, without their permission. These people most definitely haven’t given their permission for the photos to be used for facial recognition purposes, they probably don’t even know that photos of them are online!
My wife makes a point of always telling people pointing a camera in her direction, that they explicitly do not have her permission to upload any photos of her to the Internet.