It seems like there are a fair number of folks in both camps, but I'm wondering if there's a majority one way or the other that's large enough to be convincing.
I have done a total of two (maybe three?) butts, and have not foiled. They came out moist and flavorful, and no one complained in the least. That being said, I'm always on the lookout for ways to produce a better meal.
So, do you foil or not? If you do and if you add liquid, would you mind including what kind of liquid you use? If you do foil, was it experience or a well respected person that convinced you it's the right way? If you don't foil, why not?