> Say you host your own WordPress blog with comments enabled. A few of your posts get to the front page of Hacker News, and you collect a couple hundred comment

> Say you host your own WordPress blog with comments enabled. A few of your posts get to the front page of Hacker News, and you collect a couple hundred comments from California techies. The possibility of this is less than 1% purely due to commenting friction. Hacker News already has a comment section. No one's going to sign up for a Wordpress account in order to post their comments there.