The main issue with Digitex is that you cannot sell your tokens. Digitex is not an exchange and if you read the whitepaper you will learn that they have no intention of going to an exchange with their tokens.
There is a good YouTube video about this issue.
Digitex is like a casino, they want you to spend and loose your Digitex tokens while trading on their platform. But in the rare case you make profit, you are paid in Digitex tokens, but unlike in a casino there is no place for cashing out.
This is the real scam behind Digitex.