Admittedly, I read just the last two or three pages, didn't plow through the whole thread. I've seen the occasional video by these types, some are better than others, but I don't follow any of these guys, once in a while I might learn something but most are less experienced than I am in the first place and a waste of my time.
What I enjoy most and learn the most from are on-location, underwater habitat videos-- species that are social or not so much, species that are found together, what their environments look like, including variability from one location to another: color of water, how much current, low water vs. flood stage, rocky, sandy, clear, murky, clean bottom vs a lot of detritus, etc. Get a feel for what they do in the wild and get things 'right' in your own tank and you might enjoy something roughly resembling their natural behavior and interaction, which I find aesthetically pleasing-- or get that
some of the time, not when they're all dancing at you in the morning waiting to be fed.
...That said, there are some really nice tank videos out there-- aquascape, certain species, etc.