*After Baneling busting a Terran wall in with a Bunker and two Supply Depots*
Opponent: Fucking game
There are "cheesy" strategies in almost every game. These are strategies that, when properly done and successful, will almost infuriate the losing player.
But why? As I switched from Terran to Zerg in Starcraft 2, I think I've died to every single rush imaginable starting from the Terran Banshee rush, to the Protoss Four Gate, to even the Zerg Six Pool. As a regular pubbie player, I hold my tongue. Every time I've died to a cheesy strategy I withhold my anger not because I'm so damn high and mighty but because I should've been a better player and stopped it. I lose to cheese because I'm bad and need to learn to play. That's it.
I think the only time I've truly gotten angry (and now its pretty funny) is when I lost to 2 cheesy strategies at the same time. I stopped a Protoss 4gate rush with some Roaches, teched to Lair, and then raged when I saw Dark Templar blurs moving across my creep. I morphed an Overseer, but to my dismay I watched as half my army died to DT's as the other half died to Zealots.
Does this warrant a balance shift? That's up to Blizzard. But in the competitive scene, the 4gate rush is somewhat of a common appearance and a strong and accepted strategy. Baneling busts were considered cheese, until Terrans finally realized that they make a bunker behind the barracks wall-in instead of a part of it. Now baneling busts are usually used as a punishment when Terrans don't wall in properly (unless you're ST_July, who goes all in and blows up your barracks wall in anyways).
At the end of the day, these "cheeses" and just risky builds. High risk with high rewards. A good player treats it like a good trick, bringing it out when people least expect it. A bad player uses them until it turns stale, boring, and then watches as it turns to garbage before they're eyes.
The Baneling Bust story in the beginning is not cheese. It was me reacting to what I saw. A bad player hiding behind a crappy bunker and two fragile depots. Learn to play.