Yeah, the author(@bpesquet) himself had posted this few days ago. How come this post make the front page once again ?

This was obviously shared by another user and not the author. Doesn't have a show HN tag as well

was just going to mention this.

Feels like PR stun or whatever.

OP, has anything changed since last posted?

That's some accusation. Maybe the poster just didn't spend as much time reading HN in the last few days.

Honestly I had the same reaction initially. But now I think this is just an echo-chamber effect. After reading the HN article, I received at least two of my regular js-related newsletters in my email inbox that mentioned this book. I suspect that's what caused it to be submitted again (and I vaguely recall it popping up in a thread somewhere).

But I do understand that it might feel like a campaign.

Or someone else found it and re-shared it; HN does not have duplicate link / submission protection, and iirc that's intentional.

Fair enough