[JumpCrisscross]

> Where is the line and what defines the boundaries for what is termed social media?

Algorithmic sorting + public or semi-public content. Chat rooms have different problems.

[Aurornis]

> Algorithmic sorting + public or semi-public content.

That includes HN, among other things.

Putting age limits on sites requires age verification for everyone. And no, there isn’t a clever crypto mechanism that makes anonymous age verification work without also making it easy for people to borrow age verification credentials from someone older.

[Gigachad]

Australia basically just came up with a list of social media sites it applies to. It's perhaps not entirely fair or objectively true. But it lets them age restrict Facebook/Tiktok/etc without restricting IMs or small sites like HN.

[Const-me]

> That includes HN

I think when people say “algorithmic sorting” they usually mean an algorithm which generates different, “personalized” sort order for different users.