Looting only after 6-7 kills is normal when the chaos druids are aggressive, the bot will wait until out of combat or a time threshold has been passed before looting. I haven't been able to get it to ever loot someone else's loot when the "only loot my kills" option is selected. I cleaned up the code for looting a bit and added some more stuff that will shoot out to the logger when looting to make sure it's only looting your items.
As for running across the map to loot, yeah that can happen, I'll add a distance threshold option to the loot options tab of the gui tomorrow evening after class so the bot will only loot items within "x" tiles of the player when looting.
When you first start running the script open the logger, if a bug occurs that locks up the client as you noted you won't be able to open the logger afterwards.
The version I just pushed is 8.0. I'll push another update tomorrow or later today with a distance threshold option for looting.
Edit: Pushed 8.1 now, loot distance threshold added to loot tab.