Unfortunately it's chicken and the egg. Hive needs applications that's offer more than just long form content, of course usage is won't be that of Quora but what hive needs apps that innovating and creating new solutions to reasons why hive is used by everyone. Although on the outside it may seem just a question and answer platform but it will address more than that. 

Also the beneficiaries any app takes are pretty trivial in the grand scheme of things and won't be a reason can succeed  or not.