FormerlyHemlock
Hero
Because for me at least, the DM retconning an entire encounter seems far more disruptive then behind the scenes adjusting of an encounter. Maybe it is just that your experiences of bad fudging have led you to believe it can't be done well?
It's more short-term disruptive, yes. But the long-term repercussions are less. Either is to be avoided if possible, but fudging can destroy enjoyment of a whole campaign (even the scenes where you didn't actually fudge) and not just a scene. Depends on the player of course, but right now I'm strongly considering quitting a campaign because the evil archlich who casts 10th level spells and destroys armies of high-level characters went up against a lone PC, played stupidly, and then died in a fistfight, showing only a fraction of the power he had against the party united. I'll give the DM a chance to show cohesion (maybe the treasure we walked off with is his phylactery and it was all a setup), but if the lich really "died" that easily, I suspect fudging (a.k.a. Heisenfoes), and that ruins enjoyment. We'll see though.