Youtubers: The Rise and Fall

I find that I can learn a lot by just watching the history of a youtuber that hit a pretty good high,
and then fell to obscurity and is pretty much dead. Being able to see the entire scope of their
beginning, their rise, their climax, and then their fall/demise, really reveals things they did that
helped them skyrocket, and things that caused them to fall.

I was wondering if any of you can list some youtubers (names/channels) that would fit in this
category. I'd like to watch their videos…

Youtubers: The Rise and Fall