Indirik: I'm pretty sure advies are invisible on regiondetails.php to nobles (other advies can see other advies), but not 'send message to all in region' or the arrest adventurer list.
I was pretty sure I have often seen advies on that list. Hmm... maybe priests can see them? I don't have a priest character anymore.
Anyway, they are visible on the character list, with their location listed.