I've seen a lot of spam downstream from the newsletter being advertised at the end of the message. It would not surprise me if this is content marketing growth hacking under the plausible deniability of a friendly message and the unintended publicity is considered a success.

> What's the point of even sending such emails?

Cheap marketing, not much else.

Your message simply proves that Rob Pike is right. Have an LLM explain to you why he wrote what he wrote, maybe?