this is literally correct. im so mad that i cant find it right now, maybe i will later, but a few months ago i read a paper that was a report on a survey of k-tape use by sports medicine people and physical therapists, and 70% of them reported that they knew/had observed that k-tape does absolutely nothing, but that athletes are so superstitious that the PTs would use the tape anyway because it improved performance via placebo. the majority of studies on k-tape are either inconclusive or a very definite "this does absolutely nothing".

i could see it maybe being useful specifically for proprioception due to pull sensation, and possibly in EDS patients where skin elasticity had something to do with muscle/joint stability and taping the surface provided more resistance. otherwise its less relevant to injury than prehistoric medical tatooing, at least the latter would involve microinjury with a needle, which we do have evidence to support lol