What you think more profit, participate in IEO or wait after IEO and buy the token from exchanges?
for the current situation, I will choose to seek profit from the exchange because for the time being there are many IEOs that have experienced scams and do not have good potential in the future. so we are better off looking for profits after IEO ends and is listed on the exchange than we buy when IEO takes place because after being listed on the exchange then we can see the development and growth of the altcoin in the market. if it's good then we buy it and if it's bad then leave it.
The IEOs are being take place in an exchange. You can already buy and sell the IEO tokens or coins as long as the exchange give us permission to trade. IEOs are good for scalp traders because they can just do a quick buy and sell or wait for a few days before they sell since there is always a hype for new IEOs.