They do put out aerial roots as the stem elongates, but they eventually make their way down into the soil. I'll try to remember to get a picture of them for you tomorrow.
The round and round action is not right. but there are a couple going down into the pot from the base of the leaves, that's what mine do, still. Even if the leaf begins 3ft. off the ground it puts out an aerial root that reaches down to the soil, like a prop root. Looks to me as if somebody 'tidied' up some roots that were reaching out of that pot, and wound them up like that.
