http://blog.topix.net/archives/000106.html
Here's an interesting experiment in anonymous posting. This news aggregator site added a comments section for each article it collected, but it experienced slow growth. After a month, they were just shy of 200 posts per day. As with most sites it required registration. Even with that barrier to entry their automated moderation tool removed 4.5% of messages. They decided to test allowing posts without registration. Like most webmasters, they feared being overrun with trolls and spam. While usage jumped to about 1400 posts a day after a month, and soared over 5000 posts a day after 80 days, the rate of removed posts dropped to 2%. The called the effect the "Ni-channel paradox" and even quoted Shii's article. Good to see the theory holding up :)