What is Vaporware in Blockchain ?
It is a product, typically computer hardware or software, that is announced early to general public but its launch is either delayed or never manufactured or officially cancelled.
In Blockchain, it refers to a cryptocurrency project that has never become a reality or launched on account of no proper use case or technology to support promises or claims of the project. Tron and Verge, during their initial days, were considered as Vaporware in crypto world.