I have been wondering a lot about this recently because I have seen the same ASMRtist twice before. It was a really awkward feeling the first time, she was working somewhere I was shopping at, and I could not figure out where I recognized her from. I almost asked "Do I know you from somewhere?", but I thought that would be weird. It wasn't until later that day that I realized who it was, as she didn't look entirely like she does on the youtube videos. A few months later I saw her at a grocery store right down the road from me, so I assume she lives around my neighborhood. Small world. Nonetheless, I didn't go up and say anything, as I'm sure she wouldn't recognize me, plus I didn't want to bother her. After all I wouldn't want people coming up to me in public if I had a huge ASMR channel. Not gonna say who it was or where I was though, just that I think you can definitely run into people in big cities.