I think reliable exchanges is play very imimportant role to grow up any projects. And trading volume will be huge increasing by the biggest exchanges. Many projects have strong liquidity and potential development but which is cannot survive long term for listing in shit exchange and its mainly responsible to make dead within very short term. A few millions dollar raised project will going dead for the low quality exchanges like as Latoken,Exrates and Exmarkets. But of course huge amount of dollars need to be reach big exchanges.
It depends on an exchange. There is a lot of scam places that don't pay out money.