the answer is presumably because they consider piracy to be wrong, but don't want shell out money for the full version.

Presumably, but if that's the case it's not terribly smart.

In most developing markets you'll find the consumers to be less savvy about high tech IP issues like copyright violation than other developed markets. Far less.

Hell, less than five years ago here you had a significant percentage of the online population in the states copying music left and right with no clue that it was even illegal, much less wonder about the morality of it. You still see that defense come up from time to time, too.

And MS expects some preteen in Singapore to know better? Good luck with that.