Whereas me, I just assume that it does happen and wouldn't ask.
Dollars to donuts if you ask ten different tabletop DM's (VTT is a bit of a different beast) if they've fudged ever in their current campaign, I'd guess that probably the majority have. That's certainly been my experience.
Here's a pretty small sample size - but it does fit with what I said:
As a GM, How Often Do You Fudge Dice Rolls? about 75% have done it at least once in the past year or more.
and this poll from 2016 has almost the same results as this poll:
D&D 5E - Do you want your DM to fudge?
Let's go back to 2010
Are you a fudging fudger? - almost 2/3's of DM's fudge.
2011 - almost 2/3rds of respondents say they fudge.
To Fudge or not to Fudge...
Oh and this article from 2018 -
Everybody Cheats? detailing a more comprehensive study that shows that almost 90% of DM's admitted to fudging die rolls.
I'd say that there's at least a significant chance that fudging is pretty common and generally a lot more acceptable than one might think given the reactions in this thread.
This demonstrates
that it is done. It does not demonstrate
that it is acceptable to players.
Consider, for example, the second poll indicates that more than 37% of players
never want their DM to fudge. Which is even more than this thread would indicate! If that number were representative of games in general, then
over 90% of groups would have at least one player opposed to fudging. That thread literally acts as evidence of exactly what I'm arguing: lots of DMs DO this, but they know that many groups have at least one person who would be very upset by it. If almost 2/3 of DMs fudge, but more than 1/3 of players
dislike fudging, then it's extremely likely that LOTS of DMs fudge for players who are opposed to it.
The 2010 poll is even worse--66.7% (56 votes) of voters said "As a Player - I never Fudge and frown upon it at my table!" (and 25 voters, 29.8% of the total, said the same thing but "As a DM.")
The 2018 thread outright says, "Everybody cheats?" and even explicitly says, "Game masters have a phrase for cheating known as 'fudging' a roll." Oh, and several people who have participated in that thread are also participants in
this thread, and openly called that article "absurd," so it would seem that people rejected that as a source back then--why would it become legitimate now? In fact, let's look at one particular user's comment:
One advantage of playing on a VTT is dice cheating becomes extremely rare. You can't really fudge dice when everything is 100% rolled in the open, there are logs saved of all die rolls and all dice are electronically generated. So, no, I'm not sure we can categorically say that everyone cheats. Over the years, it's become extremely rare that I'll change anything that was randomly generated at the table.
I find that the game works much, much better when this sort of thing gets left by the wayside.
You may find it interesting to know
who wrote that--especially since they didn't draw a hard distinction between "cheating" and "fudging."
It matters because I think you're making a lot more out of this than it needs to be. Since you've never actually had to do it, and never seen it done, I'm thinking that perhaps this isn't that much of a problem. Added to that, from what evidence we have, fudging is very common and done at probably more than half the tables out there. So, declaring that fudging means that you automatically leave the table, well, you might find that a bit of an issue if more than half the tables out there actually fudge.
Or, to put it another way, it's very, very likely you have already played at a table where the DM fudged and you never knew.
it's kind of like asking people if they've read 1984. Something like a 1/3rd of people who say yes are lying. Fudging is, by all accounts, quite common. If players refused to play at tables where the DM fudged, I think we'd hear about it quite a lot more.
How is it
better if DMs are good enough at their deceptions that they go undetected? Particularly if I
tell them I don't like fudging and that it would upset me greatly if I found out about it?
Like...are you being for real, here? "You've almost certainly had a DM fudge rolls against you, you just didn't notice." THAT'S NOT BETTER.
(It's actually pretty unlikely that I have, though--for exactly the reasons from that 2018 quote above. I have very, very little in-person experience with TTRPGs. Almost all of my gaming has been online, mediated through Roll20, forums, Discord, Orokos. Digital records that can't be altered and that are made openly. No need to rely on whether the DM was being honest with me, I could look at the chat log and
see it.)