you're kidding right? this is an ongoing tactic of every match worth playing, and the first thing you should ever learn to counter. you'd better stock up on lube if you're going to get upset over this kind of strategy, any good player would take the first chance possible to fuck with your economy, and if you're vulnerable from the beginning then that's when it's going to happen.
I've always been fail at RTS and this is a big part of the reason. I agree that it's a viable tactic, but I'm just sooo bad at dealing with it. I've never played SC btw (excited about this one), but I believe this applies to any RTS.
To me, the first 2-5 minutes of the game seem to be a match of rock-paper-scissors. It's just really hard for me to make an educated decision when I have no idea what my opponent is doing, and by the time I'm able to do any scouting, its already too late to adapt to their strat. Examples:
If they go all out rush or die, taking the middle road as far as rush defense often means losing, since they've been focusing 100% on offense production for the first 2 minutes while you've been doing 25%-50% defense.
If they go 0% offense, the middle road will cause you to fall behind with your economy.
If they send over 1 guy to harass, the middle road could work out.
Any way I think of planning an early game defense without any knowledge of what the enemy is doing, it turns into 2/3 I lose, or at least fall behind. This is of course ignoring the option of resorting to early game offense myself, but that really doesn't solve my dilema, it only makes it more complicated. For you vets, how do high level players plan out the initial stages of the game? I don't like the thought that guessing wrong, when playing someone of relatively equal skill, will lead to a loss.