Girl likes to hang out

Girl likes to hang out:
Now this girl really loves hanging out! Literally! This is really weird and gruesome, I don’t know why do people do this kind of stuff to themselves. Few days ago I even saw a couple getting married while suspending in this sort of hooks. It is for sure a fetish thing, and I know everybody has a right to do whatever they want, as long as they aren’t hurting anyone else, but this is really disturbing in my opinion. What do you think about this?