I do not advise you to participate in airdrops, even on very proven and highly rated sites. This is very low earnings for full access to your information. In addition, many companies simply do not pay the promised coins. Think a hundred times before you participate.
agree with what is said, even a bounty campaign that is difficult or requires a very long time to do it, many of the results are very few, and some are fraudulent so they will not pay.