I wouldn't like to send my sensitive information to a brand new company doing an ICO, so this is a very good question. Knowing what will be done with that information.
Now the Internet is very common trade data KYC checks from many well-known exchanges, and even more so from fraudulent projects ICO. For ten dollars, you can buy hundreds of data of various persons and their documents that have previously been tested by KYC somewhere. In more lots, this data will be even cheaper. I dont see any sense in this passage of KYC checks. In addition, it is not known when committing any crimes our confidential information may appear in the future. We need to shy away from KYC checking, especially while participating in the ICO bounty campaigns.