>>89855045the comment is talking about the band bts but the op means the original meaning of bts (behind the scenes). the op is talking about a music video they made whil the comment is asking about a kpop band collaboration. since twitter has a high population of kpop fans, they often see everything through a kpop lens and misinterpret things (also theyre young an average so dont know old acronyms)
ye 
