I'd say there is no such thing as a good or bad limitation unless the game becomes completely unplayable as a result. The limitations are just the boundaries of the setting. Whether those boundaries are good or bad would be subjective not objective and depend on the group.
Doesn't have to be unplayable to be bad. Example: "You can only participate in combat if you are standing on one foot at all times while responding." That's a limitation. I don't see how it would in any way actually help creativity. It certainly doesn't make the game unplayable for a typical person (a friend with inner-ear issues
would find this unplayable though), but I think you'd agree that it does nothing to encourage creativity. Or: "You only earn experience during a session if you brought snacks with you." That doesn't make the game unplayable in the least....but it also doesn't actually make play any better (and could easily make things worse).
All limitations cut off possible behaviors. A good limitation must be either eliminating behaviors that would be detrimental (like the number-go-up math duel I mentioned), or making it an interesting challenge to succeed. It is simply
not true that limitations-in-general are always good for creativity. Some limitations are productive. Others are neutral. And some are detrimental.
Or, in more pithy terms, "less is more" requires that you actually DO more with less. (Not necessarily "cover more things that you did before," but at least "cover more things per option.") Otherwise...less is, as one would expect, less.
So I think the limitations I am putting forth are at least acceptable to a portion of the playerbase and as such are fine.
I wasn't speaking of any specific limitations. I'm just saying that you can't claim that limitations are always good and thus a lack of limitations is always bad. That is simply not true. There are many things that contribute to creativity, yet many of those things can also detract from creativity if done unwisely.
A faraway country may only have a Greyhawk level description on day one but it will be fleshed out more if I go there.
I don't really see how that isn't compatible with what I said, so I'm kind of confused.
I don't think you do it on purpose but you do misunderstand me a lot.
I never intentionally misunderstand anyone. Unfortunately, I don't really know what to do with this statement.
Edit: It has nothing to do with the DM doing no wrong. Players have roles and DMs have roles.
And I reject the notion that the DM's role is one that
deserves any special deference or trust from the word "go." Respect, trust, and enthusiasm are earned, the DM is not entitled to them simply by dint of having done pre-writing.