Does your bias use Autotune: or - does a bear shit in the woods?

There's a lot on the Internet written about Autotune* and its effects on pop music.  Pity almost none of it is factual or even makes any sense.  I thought it would be interesting as both a kpop fan and a qualified audio engineer to weigh in on the topic of Autotune for the benefit of you folks reading, because if there's any group of people out there who don't understand jack shit about Autotune, it's k-pop fans.  I'm sorry for all of you who come here for the pictures of boobs but this is going to be one of those boring educational posts where you probably don't need your screen cleaner and wet wipes for a change but you actually might learn some shit.