From what i heard, they really don't mind your past. You start again on the same accounts, pc etc. you get a fresh start and will only be checked if you get flagged again, same as to new emails.
My uncle who got a friend who is renting a house to guy who drink few beers with a prostitute who was servicing blizzard gamemaster one day told me that u need to buy new computer ,change isp and Your name, otherwise its instaban.
You have trolled enough posts to know how / what to do if/when you get banned.. So why are you asking for guidance? Why don't you just make it so the bot is perfect since it will only take you a few hours to learn to program and make it flawless.