I tend to believe a lot we hear of this nature (and worse) from kpop - mental, sexual, and professional exploitation, psychiatric disorders, bullying, etc. - is related to mind control programs paralleling what goes on in North America and Europe. I wouldn't be surprised if many of them were subject to human traffic along the lines of what Cathy O'Brien described.
I think this is why there are so many untimely deaths, many of them attributed to suicide (as we see in Hollywood) after they largely disappear from the industry.
