:unintendedconsequencesofnewrules:
I was 230 out on a par 5, so I decided to take a shot at reaching the green in 2 (it was right at the edge the range of my 3-wood). I couldn't see if the group ahead was off the green, but I could see the top of the flagstick. I saw the flag get removed for putting, then a couple minutes later the flag was put back into the hole. So I decided to hit.
Next thing I know, I hear a bunch of angry yelling. I walk up to the green and one of the guys in the group yells, "Next time yell 'fore', a##hole!"
It was then that I realized that they had been removing-and-replacing the flag for each individual player's preferences.