@nathanmars, nice DTube video. In my view, it is hard to say what is most important - content, or engagement, or quality of the video, etc. Yes, we are all people, but to some extent we are all different - everybody has different preferences, taste, and may like different things. So, for someone content is the most important thing, for someone quality of the video, for someone comments, etc.
I think the most important thing is that everybody is free to chose what he/she likes, and what to do. Freedom is the most important thing! If someone likes something let him do it.

Happy Dtubing!