I kind of think that the pump and dump of the market that happened after trading opened were caused by hype, I'm not sure binance is behind pump and dump. we know binance is a big exchange and can people at binance have the time to do that?
If an IEO goes down, then you can't blame the exchange for that. Although I would agree that Binance is no longer following their earlier strict screening criteria, there is hardly anything they could do to increase the exchange rate of the token or coin. If the project is not unique and having no practical usage, then it will go down no matter how much support it gets from the exchange.