i totally disagree with this sort of implantation at this moment.
yes you could do such implementation at different levels, i.e if you have earned 20.000$ in a month, you have to provide a KYC document.
but at this point its overkill, the platform has to grow faster.
I never wrote that it was mandatory to do Id verification I think the contrary! It has to be voluntarily done only! But the solution #2 night discourage multiple accounts that try to scam.