Stop talking like the concern over people "escaping a reputation" if they change your name holds even the slightest bit of water.

It doesn't.

Being stuck with one name does not change behavior in the slightest. Being able to change names would be viewed as a means of clearing their reputation by a fraction of a fraction of the game's population, and it wouldn't even be effective then. The blacklist almost entirely covers this, and where the blacklist falls short, continued bad behavior would be more than enough to quickly regain one's bad rap -- unless, of course, they behaved better from then on out and used a name change as a legitimate way to make a fresh start, in which case: More power to them.

The positive benefit this would have to other players would be greater by several orders of magnitude.