I don't understand what's wrong with someone suggesting a book to an author? Do you think all authors have read all other books?

If you had pointed out the original commenter's patronizing comment, as if they with 100% certainty know better than the author who has just written a book about said topic (at least the commenter thinks so), then I'd have agreed with you.

Gotta love HN. A commenter does literally nothing other than recommend a book and the top reply is "don't recommend books to him - he's written books, don't you know that?"

Right, and it's quite possibly not even very relevant to the book.

Seriously. And the patronizing "I'll give you a read." to start with. For others reading it, maybe the commenter didn't intend that, but please take the improv lesson "Yes, and" to heart. Be nice and offer something in addition to what's on offer and make the whole thing a positive-sum experience for all. Thank you

Here's where I thank AIs for the small mercies of slopping on pleasantries on otherwise tone deaf emails and messages.