"My solution is to close the tab and to read a book."
Exactly. Exchange off-the-cuff zero cost near-anonymous speech with well considered, edited, personally identifiable speech with a significant cost to publish. Without knowing anything about the content of the speech you can still usefully predict that the later will be more dense with meaning and generally more worth your time.
HN is a good place to sift through the former to discover the later. So yeah, you have to put up with both.