Whizbang Dustyboots
Gnometown Hero
I don't think groups with these sorts of trust issues play "rulings, not rules" systems for very long, if they're even willing to play them to begin with.There is definitely something positive to be said for an implicit skill system. However, a potential point of conflict lies in when the GM and the player, even both in good faith, have very different sensibilities about whether "it make sense you know how to do a thing" based on those things. From the player side of things it can feel a bit like "Mother, May I?" From the GM side of things it can feel like "fishing for an advantage."
It definitely requires a level of trust that some folks here at ENWorld say isn't their personal experience.