That is my take too. And there is no just bound that when you trade on the exchange at the course of winning a free prizes when made profitable trades, there Is no speak about rewarding even those who may loose their funds so, what is the need to taking the risk? Of course a null.
Basically I myself keep sounding it that it is not reliable to believe exchanges with their adverts as it could be a medium of marketing which in the market, everyone wants to succeed and the exchanges are not excluded. It just seems tricky that they just want to attract traders to deal with them or even get to make trading untimely at when not ready.
Trading is on an exchange that has passed the test with the intention that the credibility of the exchange can be trusted because it has been proven for years. The exchange must also be famous, famous for positive things.
That's it.
Oh yes, the exchange is not a place to store assets or a wallet because the wallet is controlled by us. While the exchange only provides a password or other security for the login process.