From what I can tell Mike just discussed white, black, red lists etc. from a developer point of view in a "what if" or "how would it be done" sort of way.  Discussion of how to do something is a good way to figure out how to make it impossible to do.  I don't know if he personally supports these ideas or not and even if he does it does not matter.  There are enough of us that do not support them to be able to counteract anything he might try to do.

What is more concerning is the idea that the goobermint may someday (probably years from now at the rate they move) pass laws concerning this and try to create classes of coins:  "dirty", "clean", "bad", "good" and so on.

We should take this opportunity to implement automatic mixing and automatic tainting of all coins so that by the time they get around to trying to force something like this on us it will be too late.