I love it when the ignorant masses cause rules/laws to be put into effect that affect people who are smart enough to make decisions on their own.
Perhaps the question is, is there a level of usage that in itself forms evidence that the user isn't smart enough to make decisions entirely on their own? A friend of mine at university was (at least IMO) addicted to gaming, but it's not obvious to me whether or not there's clear blue water between him and that faction of Empeg who've been heard to leave the pub at the end of the night saying "See you on shooting-people-game server such-and-such in half an hour".

Maybe one definition could be that you're gaming too much if it's starting to interfere with your drinking...

Peter