I have seen evidence of some scams being run under the guise of KYC in order to gain your passport and government issued id's. Be careful out there and remember that a lot of these coins end up being scams. Do you really want them having your passport/photo identification? This is how people fall victim of identity fraud so please think before sending your information in.
I do not understand why projects do not use third-party solutions for KYC? for example Civic. I have great confidence in professional solutions for storage and processing of my personal data;