I think the ones with extra knots are severe, too. I like my parelli halter as it is made with the softest rope and only has the knots on each side.
I find that enduro riders are the most understanding of the groups I have ridden with. I did a large multi-day event in Moab, Utah (150 or so riders) and didn't get one single negative comment. Half of the riders there had bitless, hackamores, halters, or some sort of combo bridle. It was a rare thing to worry riding near any of those horses. However, when I briefly lived in Florida, I had to get permission to go foxhunting (informal) with my halter. I got so many bad looks and comments, but I spent the entire time trying to stay out of the way of other people's out of control horses that were all sorts of tied down/bitted up, etc. Go figure.
I live in the northern mountains of Utah with my wonderful husband, 5 horses, 4 dogs, 2 cats, 32 geese and 9 ducks. Life is good.