Such profits can be provided by big exchanges. However, IEO trend is now slowing down, because a much bigger amount of people have the access to token sales. Someday, IEOs would become not more profitable as IEOs and we would see something completely different.
I do not get you that much, because I don’t know how the access of much more bigger people to token will limit or slow down the growth of IEO, yes I totally agree with you that the IEO is not as hot as it was when it first came out, but I don’t think it is as a result of people’s access to the token.
The more they have access to the token is even the more that the IEO should grow, but I think the reason why IEO is slowing is that people have even realized that only IEO from Binance directly can be trusted as most of the IEO that is still being produced by other exchanges ended up being a dump coin, but binance has been able to hold a quality project but only few projects do come out of binance unlike ICO, so there is little participation of people which is not making the IEO to really move that much again.