We needed approximately 15 minutes to gather 3.5BTC for our IPO, when we opened it

I don't see why is it hard to get 2BTC on poloniex

Sorry, but I trust only the facts:
Now I look pair H2O/BTC poloniex:
Buy Orders Total: 0.36067218 BTC
Sell Orders Total: 3830506.33582278 H2O
and IMHO the real price H2O
0,36067218 / 3830506,33582278 = 0,00000009
It's too much difference to the price of the trade.
I think this is not good.