Lehrbuch
First Post
The same could be said from the perspective of your enemies. If your goal is to avoid a back-and-forth open combat, and just crush your enemies outright, then you need to expect that the same thing will happen to the PCs sooner or later. If the party goes around collapsing the bad guy's lair to avoid having a fight, then eventually the PCs will be murdered in their sleep without even needing to roll dice, because apparently that's how the world works.
Except that, because D&D is played as a game, that will happen only to the extent that the DM thinks it is fun and interesting for herself (and possibly for the players) for that to happen.
There's a reason why PCs normally tend to encounter "balanced" opponents, and it isn't "because the PCs don't fight dirty".