@Ayvah
Nicely said, although I'd say that a single combat encounter is a question of tactics, not strategy. Strategy e.g. determines the way you level up a character, it's about the long run. Stacking barrels in a combat encounters is a tactic. But yeah, such cheesy tactics can also influence your strategy.
The real question every player has to aks themselves is whether they want to play an RPG with tactical combat or whether they want to play a tactical combat game with RPG elements. If roleplaying is your major motivation cheesy tactics won't even spoil the experience for you. If you primarily play the game for the tactics, it's a different kind of breed. But naturally, these two player types are hard to combine. The former loves the barrel tactic as an option. The latter hates it as an obvious min-max strategy.
