The idea of IMO ECOSYSTEM platform will definitely replace the Initial exchange offering(IEO) the imo system is design in a way that project on presale is already trading higher on the exchange which is profitable than buying an IEO which would end up non profitable. The unlock through referring is also attractive and profitable.
How can you so sure that IMO will definitely replace the IEO idea? Do you think all the IMO plan will succeed? No way! There will be drawback projects too, rather investing in reputed exchange's IEO mean profit confirm. I will stick on IEO, let's see how IMO replace it!
You talked about IEO as though IEO doesn't have their own flaws over the past few months or years rather...
A platform is meant to experience flaws, challenges, learn from it and device a better way to improve on it as well. IMO truly already have a working exchange with huge liquidity and order book where you can sell your Presale tokens anytime and also IMO have the IMO Wallet App where users can buy Presale at anytime and sell in the IMO exchange if you chooses to catch out with reliable profits.