Sorry but I don't consider WhatsApp to be in the social media category since it's just a chat app for your contacts, not an A/B algorithmically driven carousel of media to keep you hooked in and for strangers to hit you up (unless they have your phone number). However I do think Meta will try to slowly make it a social media app.

If a classmate is sending you slop memes, then it's human curated content from an acquaintance, and not algorithmically driven, unless you consider your friends bots.

1. a user is shown new content based on extensive profiling and a secret algorithm that the user does not control

2. a users activity can be discovered and tracked by people that intend to take advantage of the user

3. the operation of the site is optimised for addiction (or more euphemistically "attention")

I absolutely don't think that a book club or a kids own website comments or person to person chat systems should be included in the rules.

Note - I'm not saying these things should be banned, just that I think it's reasonable to restrict their use to adults.

In reality, a large enough group of people on the internet starts to turn sour. Especially with anonymity. Especially without a specific purpose like a book club. Especially without moderation.

Small groups where you know everyone is where it’s at. To avoid internet stalkers and bullies, and for general quality of the community。

Our brains are built for small communities, not billions.