When a project has no real time use case, it will definitely fail, no exception. Airdrop is just another marketing strategy, people will come to about a new project and obviously those bounty hunters will dump all the rewards into exchanges for sure. If a project got real value like a stock or with a real time usage like gas for the case of ETH, why do people need to dump on listing itself. I am sure, when there is a real world application, at least 50% lesser dump as people will learn about the potential of a project and will buy back for using in requirements or for investment reasons.
XRP is one altcoin which did airdrop and surviving till date. I am not backing XRP or not arguing about like it got a real usage. It is an early one and managed to attract investors and managed many pump and dump to secure free cashflow. Airdrop project or not, anything will fail without real use case or due to bankruptcy.
Agree to that since how does a project would last long if there coin or token created doesn't have any use case for sure people will just buy it for pump and dump reason.
Also we usually see that kind of set up on most of scam projects that's why I'm so picky upon choosing the best project and always go with Bitcoin if I choose to invest for long term and drop osme little cash on altcoins when I think I feel like ready to gamble especially for meme coins.
XRP now is doing some sort of good of action but people still need to be more careful on that project since future of that coin still uncertain.