HN really need to add Matthew Butterick's sites to spamlist.

Why so? I just skimmed read the linked page (after pasting the URL manually...) and it doesn't seem any worse than other articles posted here.

Because if you follow the link you get http://practicaltypography.com/graylist.html. That page has about the same amount of content as a typical spam page.

He's just blocking high traffic referrers. Which I agree is odd. It's not like his site is media heavy.

He attempts to monetize without resorting to ad networks. A laudable goal, even if the methodology is idiosyncratic.