I haven’t either. I think it’s some sorta video full of random noises (well, not really random, more like calm noises) that are supposed to be relaxing.
On here, ASMR videos receive a mostly negative response, but on the comments for one ASMR video, the response is positive. However, just looking at positive comments on a video doesn’t tell you the ratio of people who like the video to people who dislike the video. You have to look at all of the comments, the percentage of people who liked the video versus the number of people who disliked the video, and outside (not on the video) responses.
Also, I don’t know what ASMR stands for.