It’s like the page design thinks the author’s content is less important than information about random visitors browsing the page. If your web design doesn’t consider the article to be worth reading, I’m not going to read it.
I feel the same about a lot of news sites that overlay the content with pop ups and ads and whatever. If the article isn’t even important to you, what am I doing here? I want my money back.
But having this on the HN frontpage, there are tons of visitors right now and this is indeed annoying.