Don't agree with everything but a good piece. It must be said however that there has long been an argument, one which I favor, against consensus decision-making in the anarchist movement. If you are interested in the topic here are three essays I recommend. The first two are by Murray Bookchin whom, I confess, I adore. His ideas are seminal and have shaped my own.
http://www.geocities.com/collectivebook/bookchin.html
http://www.spunk.org/texts/writers/bookchin/sp000515.txt
http://libcom.org/organise/general/articles/decision-making-and-organisational-form.php
Graeber's article here:
http://occupywallst.org/article/enacting-the-impossible/
