Hemingway: I only said the Capra demon is luck-based, and for the love of God is it. I never felt that one was beat because of my skill, it was always a lucky break. Why? Because the most I've ever died against any boss before that one is twice. The most I've died against the Capra demon is thirty. You can't say I don't know what I'm doing, and it's universally accepted as the most cheap on opportunistic boss in the game by various things I've read.
A lot of other enemies have cheap moves and behaviors as well, but they're not all over the place which actually makes it more unfair and frustrating when they do cheap kill you. Also, the difficulty is already cranked up on Dark Souls it's no different in difficulty than any other game on its hardest difficulty. You might be that good, you might be lucky (which I would rather have, good luck never fails you), but if you read what people say, you're in a distinct and small minority. If the deaths in Dark Souls meant more than in any other game I think that would help, but it's just a death. I'm going to argue that it's you who are giving the wrong impression of the game because yours has not been my experience with the game. See, that's kind of pointless.
Kaernak: Really, because I've found Dark Souls to be controller-throwing frustrating at time, but more than that I've found it to be nothing but a grind. The game slows to purgatorial loops of dying and reclaiming your souls, and either you have to fight tooth and nail an inch at a time to get to the next door (and that wears you out, making frustration a lot more likely), or you've been through the area so many times it's like victory in hell: Shallow, pointless, and always going to happen. That's not even accounting the souls you need to grind out to get items or armor upgrades. Also the most traditional level grind.
If you don't think the game is cheap tell that to everyone who got killed the first time when you cross the bridge into the Undead Parish. I mean the very first time when the dragon just flies over and casually nukes you. You have no defense against it unless you know it's coming and they wouldn't.