No he is very real, there is a huge back story on this creep Dr. Gu having second or more accounts and using it for...  well just read if you want. It's pretty sad in a funny sorta way. plus if I remember correctly he was fired from the hospital. https://www.theverge.com/2019/3/5/18147216/eugene-gu-twitter-social-justice-activism-abuse-sexual-assault