While I wouldn't pool hop and don't care about refillable mugs as I've never purchased one, I have better things to do than sit around and dictate what I think everyone else should do. What I think doesn't matter a whit as people will do what they want to do anyway.
I'm just thinking maybe this is why my doctor swears I don't have a blood pressure and will live to be 1000 years old.

"Don't sweat the small stuff" is my motto. I go to WDW to relax and get away from stress,not to worry about what everyone else does.
All I can say is everyone have a great trip-I know I will.