I saw the same phenomenon on Cryptsy for half the new coins added to its markets. I sometimes wonder if whales deliberately buy a few sats worth at the rate of one Bitcoin per altcoin to manipulate the charts. Because of those crazy buy orders the full trading history of half the coins on cryptsy was impossible to view, it showed as a flat line at a crazy high price. Those crazy buy orders hid the first day prices on the historical charts so nobody could see how badly those coins got dumped.