yeah, caution is indeed very necessary for those of us who are in crypto and i also agree with your advice. but if the IEO project has a good future, i think it's okay to buy it. it will be very beneficial for us.
indeed at the moment it is very difficult to choose a good IEO project, so i feel IEO is almost the same fate as ICO. but this is just my feeling, i hope it's not true.