As you know IEO trend is growing but i feel IEO is profitable only for those who invested in token sale but who have purchased altcoin after launched they suffer loss majority of the investors ,as the BTT and some other altcoin examples of IEO.
Yeah you are absolutely right about this topic and not only BTT but also Celer network, Matic as the same condition who are late investor after the launch of those token till now.