For me blackhat is not an option, I simply don’t know the methods, or the methods are above my technical ability.
But if I did I would happily use them – why? because traffic is our business, not content.
Don’t get me wrong I put a lot of energy to my content & presentation, but I don’t kid myself that most visitors would happily buy from a less content rich site. It was just a case that they stumbled across my site instead of someone else’s.