Thank you for the study.  Nice chart porn!  You're right about the definition of "anonymous" being the key. 

No one has yet volunteered to be an expert witness for the plaintiffs in any court for the allinvain larceny or the mybitcoin class action, despite this being worth tens of thousands of dollars.  Gavin has even said in these forums that he doesn't want to be involved in helping the police or private investigators find or target individual users of the bitcoin client.  Thinks it would be unethical. 

In my experience it always kills these "bitcoin is not anonymous" discussion to point out that despite what Garzik, Gavin, and dan kaminsky claim about the lack of anonymity, not one of them has been able to solve a single stolen bitcoin case.  Tens of thousands of dollars just sitting there for the taking if they do, not to mention justice for the victims!

Maybe you can do better ferglar, but I doubt you can do anything beyond expound theory in obtuse academic language either.  If you really can link the mybitcoin coins to forum user names, then out with it!  Do you know who the thieves are, or not.  What is your % degree of certainty and can you be an expert witness?