Since a bot sits in a town and just pm's people constanly over and over. How about putting a suppress message on whispers. This would be logical so that it would have to wait a few minutes in between its spam. Not neccassarily stopping them but slowing them down a bit. Maybe this was a stupid idea

. That actually way better solution.
i'm sure there is like 90% botters who uses them and 10% players who want to try it, so no sense to actualy leave it. And i doubt they wll get many more new players just because they have trial accounts...