If a bounty program requires you to do some activities, not just share a link, and there is a feedback from the moderator, then the bounty program goes well and the project is getting more users trust and investments. For example, I have shared a link to MaxData.io and the moderator told me that it is necessary to write a unique text about the project, that I have to contribute in the project. Thus, by our actions we can earn tokens. I believe that feedback of the project team is a huge plus for the project. Besides Airdrop is like trap - there is no such thing as a free lunch, you never know if you get a token or not.