When channels all across youtube start losing massive amounts of subs and @TeamYouTube @YouTube don't reply its really frustrating for creators. We work for you! Please COMMUNICATE! Put out a tweet! Let us know, anything is better than silence.
It could be the Copyright Match Tool, everyone has fans.. and there's dummy accounts created by fans to support us. Others they download your videos and use them to create fan based videos. Never done it but I know of quite a few that've gotten taken down.

