What did you expect? People that were interested in IEO already invested their funds and with the current market situation I am not surprised that they are not investing.
They rather collect more Bitcoins that some risky pump and dump tokens.
I think top investor aren't satisfied even by top exchange IEO. Suppose binance IEO, this exchange IEO projectalso dump because investor are interested in profits but not interested in project future.
you cant avoid such dump even in bigger exchanges. investors are after for their profit. dont care much about anything else.
only those who truly believe that such project can make a difference in the future will not sell their portion.
but who are those that can wait like a lifetime? lifespan of most crypto projects are quite short. so most of them are left nothing but the choice to sell it. now, IEO is like ICO again. the price decline is very evident.