I'm curious, in your chart, where do the bumps come from? Does it mean the video views increase in the beginning of the day, and then flatline until the next day?
Almost. The time zone here is Europe, while the posts are in the US. Posting usually happens in the morning (NY time) and get views around the same time they are posted. Succesful videos continue to accumulate views for a long time, but bad videos don't.