Even my information is used to sign up for other campaigns, this is really crazy
This is unfortunate situation. I have also seen my name on some spreadsheet while I wasn't participating and some I was. In such, what I do is to alert the BM and he would sort that out by removing the fake name. This not thing is getting so high these days in bounties.
Just like you, Someone stole my information and took part in airdrops and bounty on this forum. And of course they will be removed by the bounty managers, but to be honest, it makes me feel uncomfortable because they use my information for campaigns I didn't participate in.