I also find it interesting that again "neutrality" is defined by "following the rules" which seems to be an impossibility in a FKR game where the entire point is that there are no rules. It seems then that the value of neutrality is the value of following the rules, which makes it an odd-statement for a non-rule system. Though, in the original context, it makes more sense because the referee doesn't favor either side, however, in the context of a GM, I don't think there is a good value in thinking about it in terms of two sides with a third neutral referee.
I think the most helpful way to think about
neutrality, in the context of RPG refereeing, is to look at the historical examples and the departures from them. We can then see what neutrality does and doesn't bring to the table, what some of the pressure points are, and what we gain and lose by sticking with it as a principle.
In the same way that there's no unique best answer to the question
should we film a movie in black and white or in colour?- The Maltese Falcon is inconceivable in colour, while
Hero is inconceivable in black and white - so there's no unique best answer to
do we want the referee to be neutral. It depends on the experience we are hoping to have. (See also
@Campbell not far upthread.)
I want to put to one side a GM who
actively deceives about action resolution processes - that raises a further range of issues that are important (eg did the players implicitly agree or even desire to be deceived?) but easily distract from a focus on neutrality as such.
So: sticking to the wandering monster clock
come what may is clearly neutral. It can cause the sort of problem Gygax identifies in his DMG (p 9). The response Gygax recommends is
varying brutal wandering monster results for groups that are playing skilfully but getting unlucky on the checks. That prescription in itself isn't a departure from neutrality, but it is hard to implement in a neutral way because judging the boundaries of
played well but got unlucky is a hard thing to do! It's no surprise that, over time, wandering monsters drop away as a source of adversity and time-pressure and that
use those encounters that will make the game fun in a pacing/drama sense becomes a more popular technique (4e D&D is probably the full development of this principle in the context of D&D).
Just as with how situations are established in play, so
action resolution can be approached more or less neutrally. Rolling for success/failure on simple tasks like (eg) opening doors or finding secret doors is pretty neutral; and classic D&D has lots of this. Deciding if the process someone describes for how their PC disarms a trap, and adjudicating that by direct application of fictional positioning (rather than any sort of roll)
can be neutral, if the player is a competent describer of things and the GM is a competent judge of how the machinery of the trap works.
But it's easy to hit limits. In my Classic Traveller game, one of the PCs wanted to make modifications to a communicator so that instead of performing its normal function it would do something slightly different (maybe jam an enemy signal? I can't remember the details). The player's PC had relevant skills (Electronics, I think it was). The player knows little about radio technology; I'm the same; and there's the further complexity that we're talking about science fiction adventure in the far future! As referee, I decided that the attempt was possible: that was done non-neutrally, and rather having regard to questions like
does it make basic sense? (yes, it seemed to) and
is it abusive? (no, it didn't seem so) and
will it contribute to the ongoing trajectory of the game? (yes, it would).
I then set 10+ as the basic throw required (on two dice), applied appropriate modifiers for skill and stat, and stated a final throw required - this was extrapolated by me from an example of resolution in the Electronics skill description, and was neutral enough in that sense but not connected to any "realistic" sense on my part or the player's part of how hard the thing might be.
There are approaches to adjudication that depart further from neutrality than what I've just described. Eg the GM answers my questions in the same fashion that I did, and then instead of setting a difficulty just says
Yes, it works. That sort of free-form approach is a perfectly feasible way to approach RPGing, but will produce a pretty different experience from free kriegsspiel! We're moving much closer to the GM as storyteller, or maybe collaborative storytelling between players and GM.
A third domain of GM decision-making we could look at through this lens of neutrality and departures from it is
establishing consequences of action declarations, especially when they fail. The most "neutral" approach - which works well for trying to open doors, or trying to find a secret door - is
you don't get what you wanted. But we can see the limits of this even in classic D&D, when it comes to tasks that are risky, like climbing a wall or trying to disarm a trap: does failing a climb walls check mean
you can't see any way up (a bit like failing to find a secret door) or does it mean
you fall and get hurt (which is a pretty different proposition!). If the latter, how frequently do checks have to be made? The early D&D texts are all over the place in this respect (eg Moldvay Basic says to check once per 100', with failure meaning a fall at the halfway point; the PHB says to check once, at the midpoint of the climb, with failure meaning a fall; the DMG has movement rates in feet per round and says to call for a check every round to avoid a fall). This shows the limits of neutrality in task adjudication; it only gets more complicated if the task is
I approach the hobgoblins in a friendly fashion (what does failure mean here? that they're unreceptive? that they attack?) or
I send threatening letters to the mayor under a pseudonym, with the goal of bringing about a change of city policy.
My own view is that
the more complex the range of anticipated fictional situations and acceptable action declarations, the less feasible that neutrality is as a referee disposition, even if is desired by the game participants. The converse of that is that play in a neutral style works best in an artificially sparse and constrained fictional environment - eg a classic dungeon!; or an Agatha Christie-style mystery set-up where all the relevant parameters can be pinned down in advance; etc.