My brother and I have been using candybot on 3 different accounts (2 started from 0, 1 already ufe) for a whole YEAR, and neither of us got banned.
He bots up to 20 hours a day, on 2 accounts, on the same computer, and he didn't get banned.
So just use a pixelbot (CandyBot is still working very well even though it is not supported anymore) and watch out for your drones
Edit : We both collect boxes only, in x-5 or x-7 to avoid getting killed too often.