Gandhi sent me a copy to review:
This method is about 100K/hr (I did the calculations) but can only work with a maximum of two accounts at a time, in the whole of OSRS. Unfortunately someone else is currently doing it already at the time of review.
This method could only really be sold to one or two people at most and that's if they were optimistic and willing to compete with other players. It can be botted using a script that costs money (between $8 and $15, not saying exact amount to stop people guessing the method).