Well, the rules are already in place. It is paydata, like any other. The trick is to find the right person to hack, and getting past their IC. The best spell formulas are going to be in the hands of the megas, national militaries, groups like the Draco Foundation, Atlantean Foundation, Illuminates of the New Dawn, and the Black Lodge, and the private servers of people like Ehran the Scribe. So... a slightly better chance of success than hacking Renraku's ZOG accounts?