The time cost of participating in different types of cryptocurrency airdrops varies. For pure - task airdrops, it may take time to complete social media tasks like following and sharing. Low - cost interactive airdrops require time for asset deposits and transactions. Pledge - type airdrops need a longer - term capital lock - up period. Exchange airdrops may involve time - consuming asset - holding checks. In general, complex and time - consuming tasks with uncertain rewards may not be worth the time investment.