> So I started pointing Claude Code at other data exports. My Facebook, Instagram, and WhatsApp archives held around 100k messages and a couple thousand voice notes exchanged with close friends over a decade.

> The model traced the arc of our friendships through the messages, pulled out the life episodes we had talked each other through, and wove them into multiple pages that read like it was written by someone who knew us both. When I shared the pages with my friends, they wanted to read every single one.

This is a stunning violation of the privacy of your friends.

If someone uploaded every single private conversation I had had with them to Anthropic, they would no longer be my friend.

Yes, though unless you used non-mainstream platforms, all messages are already on the servers of Meta or Google. Not sure how much worse Anthropic is.