As noted, it is not against the guidelines though. Personally, I just flag them.
HN is for more than tech.
It goes in cycles. If there's a good article from a new or irregular (for HN) site, you'll see a lot more articles from thast site show up on the frontpage.
It's a business article. HN is also about commerce.
Also no Agree on our tracking to read the article on BBC News, this popups makes me most of the time not read the article.