I support KYC for legitimacy check especially to claim bounty rewards or required by such exchanges but it's also bit a risky hence that's your identity that could also can be used by other people online if they have access to your submitted documents just like what happened to Binance kyc leaks incident. In order not to fall from this KYC process, it is best to filter airdrop and bounty campaigns that doesn't requires identity checks.
I do not support KYC, but its a thing that has its purpose and has a chance to live in the crypto market and crypto industry.
I wouldn't ever send fake ID because its a) illegal b) breaks the point of using the service and crypto in the first place.
We are not community of frauds/scammers/people striving to break the law, we want to use new technologies and we need the game to have adequate rules.