To be honest, one can earn a lot through Airdrop Campaign or even Bounty, but it just needs to be a quality option.
In my opinion, it is better to do the bounty program because it gets more results.
I wouldn't choose the untrustworthy option either. With the Airdrop Campaign, you won't be able to do anything like that. Because doing so will only make things more difficult.
I am personally always cautious and that is why I only participate in Campaigns that are absolutely trustworthy and can be relied on to work on.