Since this 'can I rob pcities' thing is causing some controversy, let me
explain it from my point of view.

First: Yes, you are allowed to rob pcities. There is no rule against that.

Now to the actual case. There were three people involved. We shall call
them A, B and X.

A and X had an ongoing reallife dispute, alledgedly involving rl funds or
property. In A's view, X owed him money, which X disagreed with.

To collect the money, A approached B and together they raided the room of
X and took his items. After this A approached X and told him that unless
he paid his RL debts, he would not see his items again.

This is where we archwizards come in to the picture.

Robbing a cities is entirely ok (though then the thief is responsible for
any reprecusions and shouldn't whine if he gets pkilled). What made this
different was that it involved a RL extortion scheme (pay in RL or you
will not get your items back), which violates 'help extortion' and
'help trading'. If there had been no RL "blackmailing", I would not have
gotten involved and written it off as a legit robbery.

As it sucks to have to mediate in RL disputes, especially since both
sides have totally different views on the matter, I figured I'd try to
act reasonable. The net result was that A returned most of the stolen
stuff to X (minus one item which was supposedly kept to cover the
expense of items that X had damaged from A).

I figured this was quite fair. Everybody got something (except poor B,
who got duped into this mess) and there was no need to start removing
people. The reason for not doing any removals was mainly that A agreed
to return most of the items, and in all fairness, A could have raided
the city (and kept everything) had he not included the RL blackmail into
this mess.

++ Gore

P.s. I've gotten wiser from this incident. In the future when I get
approached by two immature kids bickering in the MUD about RL issues,
instead of wasting my time in dealing with their shit, I will remove
them both. Easier for me, and fair for everybody.