Like Tony I have arthritis, I have it in my back and I can't stand too long and if I sit for a while I get stiff and sore. I would want a refund if I couldn't see a thing because of selfish people who think it's their right to do what they want.
If you book a dance or standing area I think it's reasonable to assume your view will be blocked at times just as you will block the views of others. When you book these tickets you should know what you are getting
I don't think people are putting others off going by comments about standing. These generally related to seating areas and others like myself have said their experience was that nobody in the seating areas stood until DQ and they then sat down again. So for the avoidance of dobut I can confirm I had a seat and that folk standing for one song did not ruin my experience in any way. In fact the sheer delight on people's faces as they got up for DQ was a joy to behold.