drummyfish do you have any real issue with STK, for example you want to fork STK or use it commercially? In this case I suggest you to simply remove these karts.
I'm affraid though that you simply have to much free time and you don't know what to do. Better try to do something useful instead.
For "STK does take away my freedom"
LOL, so I take away your freedom, because I don't allow you to drive my car when you want? Sorry for that, you can PM me and I will give you the keys.