Binance, okex, houbi and several other IEO launches from the top exchanges actually don't force people to participate there, and hold their tokens. But it is a rule that for each IEO participant must hold a number of their tokens to be able to participate, and if you don't want to, you are not forced to participate there either. I think so, anyone who wants to participate then follows the rules and for those who object then go and try to find IEO on another exchange.