Minecraft leaks (or used to leak) a prestigious amount of memory and runs poorly on every platform. Some people would say this makes it a bad game, even though

Minecraft leaks (or used to leak) a prestigious amount of memory and runs poorly on every platform. Some people would say this makes it a bad game, even though it outsold Tetris. The critical component of most software is the design; performance doesn't matter much because half of X's old software was written when your computer having 500MB of RAM was impressive, and past a certain point being snappy is more of a nice-to-have (and yes, it is very nice) than an actual necessity.