I'm surprised to see no one has mentioned Quora on there. Their approach to making anonymity variable based on topic and context, while at the same time requiring real-identity backing it, works well. Users are able to hide their identity as needed while the site can still maintain accountability.
Personally, I am not for real name policies or anything like that, but the problems with non-anonymity needs to be fixed if possible. For example, I remember during the Google+ nymwars that someone said on Google+ that it is odd that anonymity is needed to talk about nymwars.
This is all mildly ironic since the easiest place to remain anonymous is the internet.<p>Real Name policy my ass. More like seemingly real name policy.<p>Anonymity is certainly shifting but death? Don't think so.
My alternate thesis ...<p>Anonymity will not die but be self-regulated to those adult enough to handle its set of responsibilities to serve the greater good of the world..<p>Anonymous seems to come close to it as far as different factions within Anonymous now getting clued in that criminals have infiltrated their group and splitting of to continue specific goals..