Whilst I still do not believe bitcoinfog to be wholly effective when used on its own, I do recognize it is part of a larger and more sophisticated system to protect one's identity. The incident regarding the tracking of Sheep's funds was more to do with the fact the sheep owner did not observe several basic mixing good practices and the size of the bitcoin transactions. I will be posting a mixing guide sometime later today, perhaps after lunch or tomorrow depending on how much work needs to be done.