It is sad to see that sibling answers are somewhat avoiding the question. I concur, "exploits" in MMORPG are about abusing unintended consequences in the design

It is sad to see that sibling answers are somewhat avoiding the question. I concur, "exploits" in MMORPG are about abusing unintended consequences in the design of the world, not in the design of the program. Like spawn locations where mobs are trapped and easier to kill, or combinations of weapons/gears/abilities that give an unforeseen advantage. That a stronger type system "eliminates a whole class of bugs" is nice and all, but users should be wary of the false sense of security it gives (in the same way that the weak type system of C gives a false sense of security when you come from assembler programming). You can have proven and certified bug-free crypto routines, and fail pathetically because their a giant hole in your crypto system. Just a friendly warning.