Using the power of hate in an internet protocol is a damn good idea that is already out there: http://savingtheinternetwithhate.com/design.html

I wish more people knew about that. I don't know Zed A. Shaw (I've seen people hating him publicly in this forum, how ironic :) ), but this protocol made me think 'I wish I had thought of that'. The authority problem (aka 'how to get less bullshit online') could easily be the most important problem to solve nowadays to improve our quality of life online. Utu could work.