I know KYC is important to avoid spammer, and false account, you can easily make thousands of false account, to get an easy bounty, if there are no KYC, than Spammer/hacker get his money, but when KYC, spammer/hacker doesn't get anything, because he cannot give thousands of ID cards.

But I don't love giving my ID card to unknown person... I can be dangerous. (identity thief?)

What's do you think?