Apparently the reasoning behind this is that I used "misleading titles / thumbnails" - Which makes no sense, as every thumbnail and title I use, relates to what's in the video, no matter how mysterious. Waiting for a reply @TeamYoutube to rectify this so I can get back to work.
You're the reason I started watching YouTube so frequently. I've sent my tweets and I hope that your over 2 million subscribers will do the same.