Knowing ASMR is A THING definitely changes my relationship with the sensation. Suddenly, it seems not that I'm viewing videos because their creators need me to share their excitement, but instead because I want them to provide me the good feels, which doesn't give me a sense of responsibility, but rather something closer to greed. Instead of the longing in the videos being directed toward magic or puzzles, with the tingles being the side effect, now the tingles are the main goal and the activity occurring becomes the side show. It seems merely a way to achieve a physical reaction. Suddenly I kind of feel like a creeper for watching.
Complicating that voyeuristic guilt is the fact that ASMR is expanding into the realm of literal pornography, by way of a whole genre known as ASMRotica. In ASMR's early days, some called videos intended to trigger the tingly feeling "whisper porn," much in the way that the internet designates exceptional shots of steak or the Sierras "food porn" or "Earth porn." ASMR enthusiasts were always quick to tell you that the feeling was NOT SEXUAL, but now that's not always the case, and some in the ASMR community are uncomfortable with how the whole endeavor will be stigmatized as a result.
Of course, if ASMR is just about getting tingles, then even without its being eroticized, it certainly can be considered porn-like. Following the Supreme Court's famous definition of porn as "I know it when I see it," ASMR can look NSFW. It's already the case that many of the most popular SFW ASMRtists happen to be young, good-looking women, and there's certainly something porny about watching internet videos by yourself to achieve an orgasm, of the brain or any other variety.
There are a few obvious distinctions between whisper porn and regular old porn: ASMR doesn't cause sexual arousal (though there must be at least a few outliers who use it for that, because the internet is vast and people will get off on just about anything). Watching pornography regularly is correlated with elevated levels of depression, whereas many report ASMR to help with depression, anxiety, or insomnia. GentleWhispering, the doyen of the ASMR community, says, "We've gotten feedback from firefighters, soldiers, pilots, lawyers, single mothers, and suicidal teenagers who just watched these videos and it changed their attitude and mood for just a few minutes."
But so far there hasn't been any confirmation that the mood alterations from ASMR are long-lasting, and GentleWhispering makes it clear that watching her videos isn't a replacement for clinical treatment. There's also the inevitable darker side of ASMR videos; while they might appear less psychologically harmful than sexual porn, some people have reported ASMR addiction.