I'm afraid I have to disagree with you there. Keeping a lockdown on lots of game code does not guarantee a cheat-free environment, nor does a more accessible code format open the floodgates to cheaters. Look at games like UT2k4 and Red Orchestra. Sure, there are cheaters, but they are not terribly prevalent nor do they make a very big impact on the enjoyment of the game. There are so many new aircraft models out there (like the Rafael, Mirage F1) that simply can't be added without losing another aircraft. Tons of people would love to be able to fly a properly made F/A-18, but the best that can be done is a replacement of the Su-33. There is a huge base of people that would be completely willing to spend the time and energy needed to bring these aircraft to the same standard that we already see in the game (just look at the Falcon 4.0 community), they just need the right tools to do it. Will we see more cheaters if the game source becomes more accessible? Most likely, but this can be combated by any of the myriad of anti-cheat systems other games use. Will the benefit to the community outstrip the downside? I most certainly think so.
