Dup: <a href="http://news.ycombinator.com/item?id=1089478" rel="nofollow">http://news.ycombinator.com/item?id=1089478</a><p>This would've been detected by the system I outlined here:<p><a href="http://news.ycombinator.com/item?id=1012215" rel="nofollow">http://news.ycombinator.com/item?id=1012215</a>