Screen scraping photos of my kids from a kindergarten website. Recognizing good photos that feature my kids and deleting everything else is manual, though.
Alerts to my phone if the fridge or freezer temperature exceeds a limit or the humidity under my dishwasher starts rising.
Granted, neither are fully automatic and require manual intervention.
I wouldn’t be that pleased with a childcare facility taking photos of my kid then putting them on the internet. I suspect I’m in a small minority though.
It's behind a login and they've asked for parents' consent for each child separately. Everyone with access has agreed not to share any of the photos.
I actually haven't shared my scraper script just because I think someone would then share the pictures (perhaps accidentally).
EDIT: I'll just add that there are no public photos of my kids and I ask anyone who takes photos not to share them outside family. So I do agree with your point.
I'm using a ready-made solution from http://wirelesstag.net . While I think I could build suitable hardware myself, I wouldn't have the skills to make them run on a battery for two years.