"Cheesing" as it's called, is classic SC2 strategy. People absolutely hate it, but it occasionally works, even though it feels cheap. It's kinda like Blitzkreig in chess...
It's not my fault if you don't scout. Planetary Fortress rushes, proxy barracks, cannon rush... it's all fair game.
> Scholar's Mate has sometimes also been given other names in English, such as Schoolboy's Mate (which in modern English perhaps better connotes the sense of 'novice' intended by the word Scholar's) and Blitzkrieg (German for "lightning war"), meaning a quick and short engagement (Kidder 1960).