I am considering some wedges to halt this practice:
1. Require that a mage (actually, anyone from the mage's faction)
have visited the location at some time in the past.
2. Require that the location have some human in it.
3. 1 or 2. In other words, there would have to be someone there,
or you would have to have been there yourself in the past.
4. Require that someone, anyone, has visited the location.
I prefer #3.
-- Rich Skrenta <firstname.lastname@example.org>