ASMR's main draws, as Richard explained, are the feelings it can create. When a person hears whispering, crinkling, tapping, or other ASMR triggers, they experience tingling sensations throughout their body. But the physical sensations aren't the only reasons people watch ASMR content. A 2017 study found that 41% of respondents watch ASMR videos to help them fall asleep, while 59% watch to relax.
I have repeatedly tried listening to ASMR YT videos, however, I have found them actually highly irritating and not calming. The whispering (extreme soft speaking) cause me great annoyance. You are right in that not all people respond to ASMR videos in the same manner. However, a back massage with calming music, listening to powerful worship music, dialogue of a spiritual nature, sitting by water and meditation on Scripture are triggers for this sensation.
In August 2014, Craig Richard, Jennifer Allen, and Karissa Burnett published a survey at SurveyMonkey that was reviewed by Shenandoah University Institutional Review Board, and the Fuller Theological Seminary School of Psychology Human Studies Review Committee. In September 2015, when the survey had received 13,000 responses, the publishers announced that they were analyzing the data with the intent to publish the results. Currently they have had over 25,000 responses, data analysis is in progress but the survey remains open and active for continued data collection. No such publication or report is yet available.
Many of those who experience ASMR report that some specific non-vocal ambient noises are also effective triggers of ASMR, including those like the sound of rain, fingers scratching or tapping a surface, the crushing of eggshells, the crinkling and crumpling of a flexible material such as paper, or writing. Many YouTube videos that are intended to trigger ASMR responses capture a single person performing these actions and the sounds that result.