For the record: I have nothing against active people who pkill
players that deserve to be pkilled. If a player offends you
verbally (tells you to fuck off, makes fun of you on a channel)
you are certainly entitled to taking your revenge. Same thing
if he kills you, steals your property etc. Ofcourse, there is
a limit to this as well - there's no point in ruining the game
for a person who has apologized a long time ago already and
made amends for whatever in-game damage he may have caused.
Now what I personally don't like (don't know about the other
arches) is inactive players, who log on to bat only to pkill
people, many of the victims being chosen completly at random,
just because you happen to be bored. Yeah, doing this once or
twice is not the end of the world, and you rarely get punished
for that. When it starts to become a habit, and the targets are
mainly people who have done nothing against you, and are way
inferior gamewise, then something is wrong, and needs to be
dealt with.
I agree that archwizards and wizards shouldn't intefere easily
with pkills. However, the chance of me interfering with a pkill
is directly proportional to how often it happens and how useful
you are to the game as such. If you're only here to cause trouble
and piss innocent players (is there such a thing?

off, then
you will likely be reprimanded. If you're an active player who is
just teaching a lowbie to be respectful to his peer, then I don't
think anybody will interfere in the matter. Use common sense.
++ Gore