Beginners who ask questions are great. Beginners who ask questions and then argue about the answers they get are even better. Both make the instructor think. If they're not holding up the class there's no problem and lots of benefit to the instructor. If said beginner won't listen to the answer and think about it on their side, they are wasting a learning opportunity. If said beginner is absolutely set against what the instructor is teaching, and wishes to do it their own way the problem will self-correct. The beginner will eventually get tired of beating their head against the wall and leave the class. No problem. There are ego-benefits to doing what sensei says without question, even if you have questions, but that has to be tempered with some basic intelligence. "If sensei told you to go jump off a bridge would you do it?" Kim.
I like that view on the matter Kim. However i think ArcticBlizzard means the head-beating-to-the-wall type. I can understand they can be tiyring for some people especially when they spend time on a reaction and the asker just discards the answer. You could also just ignore the people that anoy you