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What I consider a "power creep" as youve called it, where I've called it a "min-maxer" is a player, not a Dm, who makes their character in the sole purpose to beable to destroy anything he or she looks at. Ie. A fighter, werewolf, troll *its insain I know* players who stack templets, items, armor, or lump all of their stats into a row so they kill anything with a swing are power creeps. This is not to say that its not ok to lump all of your ability points into one pool, but for those who do, and can deal with not being as fast, smart or wise, then thats fine. But most people, who are power creeps almost want to be perfect. Example: I had a player one time playing a barbarian..he was mad that I told him that he was not as smart as the wizard, or the cleric in the group, and by no means was this an insult. However, he took it that way. So, for the rest of the game, he started putting dots into his inteligence...and I had to point out to him, that it was a waist. If your playing a barbarian, and you want to show some class in that class, then know what your getting into, and suck it up. YOu cant be the barbarian who went to college, whos well spoken and well read. Most players who are power creeps do this because they lack things in the real world, and Dms should spot this in them early to cut it off at the pass before it gets out of hand.
And for those of you, like myself, who thing barbarians are not dumb, you know what I mean. Their inteligence is not acedemic, or learned from books. Its learned from raw survival, and instinct. They dont read, cause they are out in the wilderness and dont care, the dont talk much, also for the same reason. Their smarts is more primitive, but they are still wise and great characters to get into if played right.
back to the point. Dms cant be power creeps. Dms set the story, so they have to make the foes up to the task of taking on the the party. If a Dm, on the other hand, is making foes to powerful for their own enjoyment, well...then you might have an argument that they are power creeps. But most of the time, their not. And this doesnt mean that since your character got killed, that the Dm was a power creep. Ex, later in the story, while in a town, the barbarian discovered a thing, large, and large for a barbarain, thing roaming the streets. It was looking for something. He goes to check it out, I gave him hints as to what it was, but he didnt get it, so when he saw it, he had one last chance to leave without messing with it, he chose too *and, it wasnt that he had to for the towns sake, the creature was after him, on strict orders, and all the other players were adivising him to go since they guessed that it was after him, and had no real time for anything else.* ok, so he chose not to, and got killed. yes friends, the creature was a WARDER Gray RENDER, honed out in FULL PLATE...yeah, think about that. *now, its not that he couldnt have taken it, he just, well....CHARGE..is all he does, and like so, he ran right into a grip that defelshed his leg like a drumstick* What can I say, a NAT20 Is a NAT 20 and boy was it sweet. He learned his lesson when the players were pissed that they had to duck out from the story to heal him up so that he wouldnt die.