Yes @captainbob I agree! In fact, I believe that searches are really important to keep users engaged on the platform as they can keep on watching new, different videos through multiple searches one after the other. Maybe even searching on Steemit can show results from DTube, eg. I search videography tutorials on Steemit Search Engine, and @captainbob's tutorial videos pop up in my results.
*P.S: I'm not sure how this can be executed, but this is what I have in mind