it's not really possible for us to suggest anything to you really as no one knows how the bots are being detected. There is always risk involved. That being said you shouldn't bot if you aren't willing to lose the account if an eventual ban does happen. In the meantime some suggest to only have it bot when you're either on the computer doing other stuff and check up on it every now and then or only run it on normal hours ie: not at 3-4 am local time as that may raise suspicion if Blizzard gets a hold of those files but I don't think it really matters. I've been botting for months now sometimes more than 8-12 hours a day and haven't had any problems. I've even accepted friend requests and challenged the ones who've added me and chatted with them to make them feel like it's not a bot that initially played them.