Pay them real money or at least by existing established coin, there will be many who will join campaign without hesitating for KYC. But when you are paying them with worthless tokens, asking for KYC is too much. I will not be surprised if you get less than 1% of the hunters that usually a campaign receives.

Bounty team are looking for free marketing. They do not care who is alt and who is real. As long as the keyword typed and spreading around the internet, they are happy.