Unless you're planning on joining the circus, I just don't get it.
It seems the extreme mods would be risky health-wise.
I would think it was for the shock factor, and not to be attractive, in a pleasing sense.
I do think the big rings might come in handy, for example, when you're washing dishes and need a place to hang the dry towel, it would be right there in easy reach.
I would never tell anyone what they can and can't do to their bodies, but they can't tell me I have to like it or think it looks good, because I don't.