It's good if it's a few hundred dollars for those living in third-world countries. It means a lot coming from a free application, but if you look closely at the number of members doing the task and the allocation for the airdrop, that few hundred dollars is unrealistic.
These airdrops just proved that there are so many people looking to make money online with simple tasks on hamster alone 40 million is a huge number; these people will just wake up that they have been tricked into thinking that they can get rich overnight doing tapping on a cellphone.
Most of these airdrops are focused on Asian and African countries (third-world countries). In these countries, even $100 is a significant amount, and creators of projects like Hamster are looking for such users to promote their projects. It can be a big marketing and a bigger deception.