Here’s a non-paywalled link to an article published in the Washington Post a few days ago. It’s great to see this kind of thing getting some mainstream attention. Young children have not made an informed decision about whether they want their photos posted online.
I read through their EULA the other day, and it seems everything is E2EE so only the recipients can see the data, but they do have access to some stuff such as last login, usernames, etc.
I have a few friends using it, and it’s nice once you get it going, but adding/ finding friends is a bit of a headache in my experience