I would not be so sure, I can link a report made a while ago in which I wrote about an abuser with 20 accounts and kyc approved on all accounts on the spreadsheet of the bounty.
On 3rd world's country you can buy documents for a few dollars.
Bounty campaigns do KYC sure, but Bitcointalk as a forum doesn't. The quote I linked to is from theymos, so as I said, never going to happen.