Not being serious? Oh shit : /
I always play seriously, that's the way I get fun, maybe someone here hates me for that, but think about it: I'm giving my 100%, you should too, when a player does his/her better moves or tricks, everything is more fun no matter who wins. And well, for me not playing seriously (not spamming, I hate spamming) is an insult for the opponent: no one wants to be trolled for "being a noob".