So, can you point out to me where you are getting the information that it can't be done?
What, are you insane? Don't confuse the issue with facts.
Apparently I am since I forgot that Chandran sigs are in fact "Sub-linear Ring Signatures Without Random Oracles" and I found a paper that shows how to make them traceable etc. Not to mention a few papers that offer improvements and/or alternative methods to that paper. lol
So i've basically been talking with the bitcoin wizzards and a couple of others in irc to get another opinion and they basically agree and seem to think it is somewhat possible to achieve but its not really viable
and as soon as hondo starts researching it they will stop and find its doomed to fail!