As a rule, most blockchain- projects that have collected tens of millions of dollars for ICO, issue tokens on the exchange without real production growth.
What does it mean?
Real production and growth means what you are trying to say about it exactly?
Normally every ICO project collect the funds from the invested at the period of token sale and after some cooling period devil list their tokens on any exchanges. At the time of listing or before that most probably investors and their marketing participants will receive the tokens. Since the value fluctuation heavily impacted coin value will be fall down.