The only difference between BForBandana's trick and the typical externalities exploited by your average high roller is the number of zeros involved in the figures.
No way! Our noble masters got their rightful place on top of the Holy Free Market due to their hard work, brilliance, laudable ambition and - as much ressentiment as it might cause in the weak and envious - their overall innate superiority that separates them from the lower orders!
...And even if they do use tricks like that on occasion, lazy and worthless commoners like you shouldn't dare imitate them. In the hands of the good and the great they do no harm, but just any unwashed pleb exploiting loopholes like those is dangerously subversive of the natural hierarchy.
It may no longer be fashionable to point people to "Politics is the Mind-Killer", but that was the best example of a good, solid, and avoidable dig at the other side that I've seen for quite some time. Mockery contributes nothing, especially in a thread where as far as I can tell no one's advocated the positions you're mocking. Downvoted.
Thus spake Eliezer:
It seems that many here might have outlandish ideas for ways of improving our lives. For instance, a recent post advocated installing really bright lights as a way to boost alertness and productivity. We should not adopt such hacks into our dogma until we're pretty sure they work; however, one way of knowing whether a crazy idea works is to try implementing it, and you may have more ideas than you're planning to implement.
So: please post all such lifehack ideas! Even if you haven't tried them, even if they seem unlikely to work. Post them separately, unless some other way would be more appropriate. If you've tried some idea and it hasn't worked, it would be useful to post that too.