I have read an article that says HITBTC was a scam. Is it true? 
Here's the link : https://news.bitzamp.com/hitbtc-scam-stole-10-btc-70k-reddit-user-lament/
Here's the link : https://news.bitzamp.com/hitbtc-scam-stole-10-btc-70k-reddit-user-lament/
If you have a scam accusation against them go open a thread on Scam accusations board
And this looks like to be a form of stupidity by the user, he had no 2Fa, he left his account unsecured.
How is the lock & key company at fault if you forget to lock your door?