It's important for this type of IEOS that the team and initial investors have vesting. That way they cannot sell their coins for at least a year or 2 years. That way the next investors are protected from big whales that just want to pump and dump and gives the project enough time to develop and grow.
I never invested in any of the IEO projects as i am skeptical about it from the start, we had the ICO market where it was profitable in the start and we know what happened in the end and with the IEO project the investor had to be patient enough so that the project will develop in the a couple of years and does any investor plan on investing in these experimentation, anyone who invest in these projects will only look for profit and not for the longevity or the success of these projects and hence you have to be ready about the dumps too.