The bitcoin gold BTG Lead Developer:h4x3rotab found out to be a 24y script kid hacker who cracked and sold weak user passwords on a fourm without captcha enabled.
Details in Chinese:
https://steemit.com/cn/@quantum-bug/btg-h4x3rotabHis profile photo on a online dating site:

So now it can be 100% confirmed that bitcoin gold BTG is a completely & purely Chinese pre-mined ico scam.
This bit of news is uncertain as of the moment unless btg will have an official statement regarding this case or without sufficient proof. Even if that is the case, who cares? People just got btg for free anyway because of him forking btc into bitcoin gold. He helped a lot of crypto users holding bitcoin to get another free money from fork. I feel bad for those who bought btg now because if the information provided on this thread is proven, those investors would have to say goodbye to their money and bag hold it for a very long time or forever.