Because having bots fight in PvP is generally a very good way to get petitioned. As far as I know, there is no public bot that supports attacking a player. There are many private bots that do, because it is indeed possible. Problem with making it public is you don't know who is going to use (read: abuse) it and get people complaining all over to SOE about bots ruining BG... Generally, if you bot in private instances where no one can see you, you run a very low risk of getting in trouble. If you bot in public and negatively effect others (you know, like killing them with bots) you run a very high risk of getting in trouble AND bringing attention to those of us who bot in private instances.Why won't the bots help in PvP?
D) Pay someoneThen they were either smart enough to...
A) Write their own bot
B) Edit existing bots
C) Find a totally different botting program