Stating your division

[Twilice]

You needed to scout more in bronze then you need in silver. That's strange.
You'll se more of the early-reaper/mutas/voidray there then in silver. (It's good for me though) But then in gold the need of scout starts to increase again with early massing of units, or the "cheesier" hide your barracks nearbyrush.

-> my tip, vs zerg get ghost's. Only way to effecient counter mutas.

[ChAoS]

Ghosts... only way to effeciently counter mutas? What about thors? Or Hunter seeker Missle?

[webrunner42]

the relative ease of a strategy vs the ease of the counter can differ between tiers. I remember the "muta" scare back pre-brood war, because mutas were so easy but everyone else had to be careful. They weren't that hard to counter, but they were easier to do then to counter unless you were a good player.

The top players all played Terran, but the moderates won more with Zerg.