Questions about after a ban

Hey guys I was just wondering if blizzard will be watching me closely or if I will be able to use my Gatherbuddy a few hours a day without anyone knowing. I was recently banned in a ban blitz while lvling in a bg and I was wondering how closely or how easily they can ban me with Gatherbuddy. I just want to be able to use it again but I don't want to do anything that will get me banned a second time.

How closely do they watch you after a ban?