I think to everybody that plays any fighting game competitively should already have this mentality, the problem is that not enough people seem to understand it. In Street Fighter terms (I imagine the same context as the article I read it a very long time ago) if I can chip you all day with fireballs and you aren't going to stop me why should I change my gameplan and risk losing? I simply won't until you make me stop throwing fireballs I will gladly sit at the other side of the screen and throw them for 99 seconds.
The problem is that the two players may not be playing for the same reason, one player may be playing to win while the other might be simply playing casually. So really unless you are in a situation in which every player should be playing to win (such as a tournament) people are going to get buthurt by others that are playing to win.
On an aside, Sirlin makes good stuff every now and again and you should all really check out the rest of his site.
The problem is that the two players may not be playing for the same reason, one player may be playing to win while the other might be simply playing casually. So really unless you are in a situation in which every player should be playing to win (such as a tournament) people are going to get buthurt by others that are playing to win.
On an aside, Sirlin makes good stuff every now and again and you should all really check out the rest of his site.