Clever idea. > [1] After the article stops being front-page-HN'd, at least. He could just check the referrer. This can be spoofed but the majority of people f

Clever idea. > [1] After the article stops being front-page-HN'd, at least. He could just check the referrer. This can be spoofed but the majority of people following links, even here, won't do that. Then he can rule out getting posted to other social media and just look at people coming from Google.