Airdrop services. I suggest for those all running the Airdrop program, please require them their
Facebook, Twitter, etc. to see their suspicious activities.
Make the spreadsheet private (because some members are posting private key because they're newbie)
or make a unique registration submissions.
This is what I recommended.
Agrees to both above.
1- Multiple social media account would not make the system fool proof, but at least harder for fraud claims.
2- I would say make the registration if the wallet address is unique. This would solve the issue with various people posting other's information in form with their ETH wallet addresses; as the owner of the unique wallet will receive only. Spreadsheets shouldn't be published at all. There should be a published and public page that fetches only minimum information; like wallet id and twitter account /bitcointalk id, and display as a webpage. To resolve issue of newbies posting private keys, the form /submission system should be smart and tight enough to allow only the wallet format or disallowing the private key formats.
My 2 Satoshis...