Actually, the spamming is necessary so that your fingers don't stoned up..warming up your fingers is to get better reflex and response..same principle as in warming up your body before you go for sports to avoid cramps..

If you don't believe me, just download and analyze ANY replays from any good melee player's replay. Guess why they got an APM of 200-400 in the first minute?

I do hope that everyone don't argue which is better, both have it's own fun..I still play both of them and will continue playing..Cheers guys!