“I don’t know if I could say this with the police officers in the room,” Poole says to a crowd of more than 1,000 people nearly 19 hours later. “If he posts that on /k/”—4chan’s forum for “weapons, armor, and other myriad military technology”—“I actually did in fact sign that.”
Quite a good piece on the history of 4chan; even moot said it was easily the most in-depth and well-researched article on 4chan to date.