Because fudging is something that really only works in moderation, just like it doesn't do much for a campaign to have nothing but cakewalks every encounter or to kill half the party every encounter.The thing I find most interesting about this discussion is this: "Given (1) above, then why (2)?" Not only "why" in the game, but why do folks bother to say, "Fudging is perfectly okay ... but I only do it rarely"?
Because fudging is something that really only works in moderation, just like it doesn't do much for a campaign to have nothing but cakewalks every encounter or to kill half the party every encounter.
Even if you design your adventure with all of the numbers pegged exactly right, there's still that 1/8000 chance that the main villain of the campaign will roll nat 1's on the first three attack rolls he makes, and the big climactic battle is a crock because Lady Luck is being a brazen strumpet. And then next week, she balances the karma out by being a saucy tart and showing us the other end of the spectrum -- that Level+4 solo crits on its first three attacks and smears the party all over the floor.
We play with the dice because they give us ups and downs. But that doesn't mean that we want to go all the way up into the stratosphere or down to the center of the earth at any given time. We're counting on that band in the middle 99.5% of the bell curve, and when we miss it, we make a save to disbelieve that we missed it.
I mean, yes, I guess I could codify a bunch of rules or use a different game for my fantasy RPG of choice to avoid ever having to fudge, but it's a lot easier to just say "That 8 is really a 4" and go on my merry way.
I prefer to deal with such questions at the design level. If a result is really not to be permitted, then I will not include it in the spread.
[edit] As to "trying to define what you do or do not know", all I can figure (without knowing whence you got that) is that I made an error in grammar or punctuation somewhere. For what must seem not only absurd but inconsiderate, I am sorry.
I have never suggested that you need permission from Gygax to do whatever you will! (He gave it at the end of the original D&D set, FWIW. I thought that was also addressed to me, though.)
As Nagol and others have said, the rules shouldn't permit unfun/undesirable outcomes.
Yep. When I was a kid, discovering my father was letting me win in Stratego hurt far worse than losing games to my cheating little brother.If a player is most intrigued by the mechanical and tactical challenge of defeating a tough enemy, they might well feel cheated by the fudging. Not cheated as in "You're a dirty cheater", cheated in that if they wanted to win or lose a fight on their own merit, but didn't get to do so, so they're disappointed.