I trust CCEDK will polish their facilities to include more sophisticated systems as the FIMK transaction velocity on the exchange increases.

However it's true that similar looking deposit procedure without token was used by DGEX in its early days, and when NXT exploded in popularity it caused some trouble I remember. As long as the non-uniquely identified deposits are not disputed by a fraudster everything is good.

In any case, as always, do not store your cryptocurrency on an exchange. Transfer in, do your deed, and transfer out