LOL. I heard about this because of a strange experience I had in a women’s bathroom.
I was in a med-school class, and I went to the bathroom near the hospital cafeteria. I was sitting on the toilet, peeing, and someone walked into the stall next to me. I saw the individual’s feet under the stall wall. He/she was standing, facing the toilet, wearing sneakers of ambiguous size. He/she then proceeded to urinate into the toilet, while facing it. I panicked and thought I must have walked into the wrong bathroom, so I stayed seated on the toilet until the individual exited so I could leave without embarrassment. I then left and checked the door. I was in the women’s bathroom. I returned to med-school class and told my friends about the strange occurrence. They directed me to that website and suggested that perhaps she uses those so she does not have to sit on the toilet, haha.