Lots of stuff in this thread, with frankly a lot of people applying specific scenarios to everything.
Can you run GB2 even 8/7? Maybe not. I certainly wouldn't.
Can you run a business now using HB? Maybe not, I haven't tried, and don't intend to. It certainly seems like a basic idea of multiple accounts that just gather and sell would be a bad plan, and I don't know how much work would be involved in making acceptable amounts of money using other ideas, or mixing in enough 'unprofitable' type botting to mix things up.
Does the inability to gather 8+ hrs per day and therefore run a business making gold from botting mean that all botting is unsafe? I doubt it. Maybe it just means that botting professionally is now unsafe.
If I had a friend who wanted to bot a bit to get a bit of extra gold, or level an alt or something, I'd certainly recommend HB. If someone was thinking they'd start generating some alternate income from botting...yeah I'd probably recommend against it right now.
The issue with this thread is its applying the risks of professional botting to all botting.