just blogged over at www.Thingiverse.com
about whether deadly weapons should be allowed there: http://blog.thingiverse.com/2011/10/03/deadly-weapons-on-thingiverse/
It's a nice writeup of where things are today and how they got there. They've also put up a poll where you can express feedback on how you'd like to see them deal with this.
I've sorta been 1/2 watching the ongoing and seemingly endless debates about risque or potentially-dangerous stuff on Thingiverse and am happy that Bre took the time to blog some honest talk and ask people what they think..