What is the pros and cons of doing the KYC during the ICO or post the ICO?
I've participated in many ICOs, some of the force you to do the KYC before you can buy their tokens, others they wait and later send you a KYC email/request. so i am wondering what are the pros and cons of each approach
As long you do sent out about your information then its already considered to be a Cons. You already exposed out those important information about yourself and just like others said it would possibly be used into other purpose. This is why as an investor and if you dont like KYC then you should really clear things up earlier, if it would need kyc or not even on the first days of sale or even on the last days.
Its your responsibility to seek deep through.