It is good way to invest in IEo and forget ICO, for any cases IEO is better and more safe, i hope nothing happen in this new IEO like ICO and find many scammers come to IEO markets
It's not so safe as you said and most of the safest IEOs are running on the trusted exchange site only and as you can see that about so many bad IEOs even running on the various exchange site. You can't say if all of IEOs were safe but what you can say to tell other if IEO that runs on a big exchange site will give more guarantee than IEO that runs on a little exchange site.
But, analyzation is always needed to be caused by so many IEOs are not giving good result.