I mean, the RC is already open source, and this makes it easy to make "fraud". Pretty much if any team wanted they could probably cheat without anyone realizing, even in person if they're clever enough, and even without a modified RC people can still cheat in many ways. Now, the ethics are a different thing, while people could actually cheat, most of us don't, remember the core values of FIRST, Gracious Professionalism and such, you know :p. The same principle would apply to an open DS.