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True, every conditions are not equal, some people needed this money to survive, so selling is the only option they have, I have made so much money from airdrops before and I sold them all, I never felt regrets when they surge in value over time because I needed the money so much, I don't regret my decision for selling. 
, or it can also be a bit of sad nostalgia and regret.The things that make us happy, disappointed always appear, only when we realize but those external things no longer mean much to your feelings, so I always advise friends to do no matter what. which you feel is most appropriate at the moment. The story of the future let the future come, let the future answer.