Royse777 (more promotion) has started this practice for his last 2 campaigns if I'm correct. Well, if you are so concerned, you can ask campaign manager to do this. It's not something that depends on our decision. It's individual or the campaign manager who can decide. If you think it's breaking your privacy, you should stay away from participating such campaigns.
Yeah I think I saw that campaign by Royse777. Like LoyceV said, it will be obvious if you’re the only whose address is omitted on the spreadsheet.
You can hardly call it 'going to extremes'. The blockchain is public data, so if you publish your transaction or address publicly, you can expect that someone will verify it. I don't see any problem with that. In fact, it can even be seen as a good practice to verify the authenticity of the transaction or someone's claims. However, it's true that malicious individuals could potentially misuse that information. SO, it's good to be cautious and take appropriate measures to protect your privacy.
I don’t think it’s necessary to publish one’s transaction address publicly, you don’t have to prove anything to anyone.
No, this measure wouldn't protect your privacy at all, but it would rather benefit scammers who seek to manipulate the system using multiple accounts, such as those involved in promoting the 1xbit scam. If the address was not publicly disclosed, they would likely never have been caught.
I understand that bounty cheaters will want to abuse such system. As for accounts promoting 1xbit, they are already tag dubious users including the CM, and I doubt the CM even cares about those cheating in the campaign.