Nothing.
Eventually try to make all bots "aggressive" but I'm not sure it would change anything.
IvPBot doesn't seem to be developed anymore, and its author vanished away for months. Have you given a try to POD-Bot 2.6mm ? it's much better IMO already, and very actively developed and improved.
RACC home - Bots-United: beer, babies & bots (especially the latter) "Learn to think by yourself, else others will do it for you."