It is unfortunate but i cant remember any content creator on Dtube doing something more, investing into a single piece of content that can stand the test of time.
The problem is, that anyway, all my DTube videos didn't work anymore after some weeks, so that I always had to save them at another place, too. So even in case they were good they had no chance anyway to "stand the test of time". :) (Concerning the quality, all my videos are precious for me to remember certain moments, and I want to keep them forever, even if I am not a skillful video creator at all.)
Many ideas in this post above sound very interesting and innovative, but as long as videos don't last long on the platform, DTube isn't a real option for me.