Binance and Bittrex are the only two exchanges with the IEO now (may be others are warning up). Twice Binance has succeeded with its launchpad but I think Bittrex has issues with its own - not sure if that has been resolved. So, OP how do you get (force) other exchanges to have IEO if they aren't planning on that?
There are lots of exchanges doing IEO's. But i also didn't convince the op's post. It may end up with a scam attempt.
Every exchange in list have a strong analize group, if project - SCAM exchange will refuse EIO. A lot of exchanges are very sensitive to their reputation.
This is maybe the reason why investors of icos prefer to participating in IEO than ICO, a legit project.
If the top exchanges have a strong analyze group, then they can conduct research about the project, and
the investors don't need to doing deep research. The exchange team do the due diligence instead investors.
scams can be easily reduced with ieo's compared to ico's because exchange will be the only basis to gain trust but there will still be a possibility that our money will not grow because ieo's are still investments and all investments do have thier own set of risk . only strong handed person will still win the investing game and weak handed ones will easily be eliminated .