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.
The top exchanges always have very difficult rules, but if you succeed in joining IEO, the profit you will have will be very high because most of these IEO projects are very famous and they are willing to buy at a high price . I have been involved in a number of projects at Huobi, Binance and 2 exchanges that have always helped me to earn double profits in a short period of time.
IEO is a trend for risk-loving investors but needs to be studied carefully because not all projects can make you happy because some recent IEO projects often have lower prices than IEO.