I can say it's risky especially for investors in ieo and bounties because it's their privacy so it's better to say that it's better to submit a message to the message because there's a lot of scams spreading in the forum.
Even if you believe that the project is not a scam, complying with the KYC through video call is still very risky.
You don't want to reveal your personality as you might be in danger especially if they know you are capable of investing big money.
The world now is a risky place to live, being careful and be clever all the time could help you.
We are not in the stage where the market is fully required for KYC, they can't dictate you unless they are fully authorized by the government.