I know some traffic comes here from youtube but it will be quite a while before dtube and other steemit apps become mainstream. It will take an incredible amount of advertisement and people don't like to get on things that are new, they like already big companies. It is the innovators like us who see how amazing decentralization is and why it is so important to not be censored. We have been programmed to believe that censorship is in "peoples best interest" and most people honestly just don't care. Its sad.
But I do believe one day Dapps will take hold and become mainstream, it will just take more time than most of us here want it to :/