I think there is no exchange that runs IEO but does not use KYC.
You can visit Exmarket, there are lots of new altcoins and there are some airdrops you can follow when trading.
there are now many exchanges that run IEO and have different rules
I don’t think that KYC rejection is what we should even be talking about right now even, I know majority of us does not like KYC, but this is something that we really do not have any control of, it is their call and that is what they need, and I think the number of exchanges that requires KYC really over shadows the number of the ones that does not, so it becomes beyond our power to even try to reject it because wherever we go, we will always meet it there.
The only thing that we can just do is to try and reckon with an exchange that we know still has some level of respect to some extent and would treat the data's they do collect from us right and not misuse it, which is why I use Binance exchange alone.