Its a tough choice again, I think the main points against it are similar to those of capital punishment, what if someone gets wiped and is later found to be innocent. That's why we don't have the death penalty any more, and hopefully all civilised nations will remove it soon.
I think it would take some adjusting to, and people would get attacked because of what they'd done before the wipe, so presumably it would have to be done in conjunction with the witness protection people to relocate the wiped people away from the area where they committed their crime(s).
Once case of someone reverting to type after a wiping would be enough to stop people ever trusting it.....