I had the same thoughts.
I've been twice and only known of 2 old ladies that walked out -- but that seems more because they didn't actually get that they were getting STANDING room.
If there are others, it's not noticeable.
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.