I agree. While I'm not very pro copy-left in general, I think for a social network it makes more sense. If there are concerns about privacy, and the solution is open source, then why leave the door open to a proprietary version that would completely defeat the purpose of this software? It's especially ridiculous to refer to enforcing the AGPL as "legally bludgeoning" someone, since the proprietary code derived from this would presumably like to "legally bludgeon" anyone who distributed or modified their source code.