Google open source guru: 'Why we ban the AGPL' (2011) (theregister.com)

I've been thinking a lot about free software ideologies and how licensing is used to somewhat reclaim a legal framework that has mostly aligned itself with property and money.

I found the DiBona's explanation quite jarring.

  With the AGPL, you have to be very, very careful with how it is expressed. Otherwise you have to invoke the sharing in many different places. [The ban] is really about saving engineering time.