Well, with all due respect to my learned colleague, another SDN moderator, one high up in the food chain, explained something a little bit differently to me. Mind you, this is only in extreme circumstances, but the tools are there, nonetheless.
This is from years ago...but at the very beginning of my undergrad/premed days, I remember there being a controversial thing on sdn once and there was some shuffle over the identity of a user and how their comments could potentially have real life ramifications. That was just the one time that I remembered thinking YIKES!