foam,
At some point in the future, I'll likely be incorporating some way with my thumbnails to denote "normal," "average," "above average" and "excellent" content. May add a frame around the thumbnail that changes color, or maybe a corner - not sure yet. Anyway, the point being that you can skip over all the videos in the lower 2 categories and only watch videos from the upper two categories.
For the record, I am working everyday to become more and more knowledgable so I can provide that higher quality content. I'm well versed in finance, but am now learning much more of the technicals beyond the generic understanding most people have (e.g: am learning all the scripting for Bitcoin, how the cryptography is done, etc.). It will take a while, so just be patient and I will try to implement that thumbnail solution sooner rather than later.