We do not know how many accounts were banned on December 18th. Blizzard says 1000s and that seems correct to us. The vast majority of our users seem to have not been banned so we are ruling out software detection. Demonbuddy was selling very well over the last two months and our best guess is that Blizzard targeted certain patterns of behaviour and were happy if it got a lot of botters and a few innocent users as well. We can only guess what that pattern of behaviour they targeted was. Something similiar happened in July and we lost a lot of accounts - profile randomisation fixed it then.
Our latest release has small changes that randomise aspects of vendoring and that make it easier for us to do traffic monitoring. Demonbuddy is now as safe as we can make it.
Our advice to users is that botting over 8 hours per account per day increases the odds of ban dramatically. Running the same profile all the time also increases your risk. There is real money to be made in Diablo 3 with the real money auction house - Blizzard has just increased the cost of your accessing it.
We have a lot of refund requests. As you know, we offer a 7 day change of mind period with Demonbuddy. Rest assured that we do have the funds to honour them all. However we also have lots of PMs and emails from people changing their mind about refunds and frankly its a lot of admin to sort them out. What we plan to do is email everyone who asked a refund offering to add another 7 days to their change of mind period. If you want a refund immediately thats fine. If you want to try it a week and then decide that's fine too. If you have already requested a refund and are surprised to be getting an email offering you an extra 7 days change of mind period, my apologies but its the only way we can manage it.
People who bought 1 day keys will be emailed special 3 day keys to make up for the inconvenience.
Happy botting - be careful out there.