I remember putting ETH address in your profile had been used for airdrops before but I am have not seen managers used it in bounty campaigns yet. Many are not willing to share their address so that method could lessen the participants and would probably affect the exposure of the project.
Why would people want to not expose their ETH accounts? Out from spam tokens?
Bounty managers would usually require each participant to comment on the bounty thread asking for details such as social media accounts. In filling up the form, the participant should post the link of his comment.
Oh, I experienced that before
that was a great move from bounty managers. I wonder why they'd stop from doing it? It will help the campaign to get REAL influencers, not the fake one.
This will lessen also their job of re-checking accounts that without their knowing they have already checked.