The problem is that LeafyIsHere's channel is still up. Here's a little bit of info.

Recently, a speedrunning marathon called "Awesome Games Done Quick" has been on. As of this petition, they have raised over $604,397.63 dollars for a charity called "The Prevent Cancer Foundation". After this event, that charity will go on to help efforts to prevent cancer across the globe. Unfortunately, there is one cancer these people can't prevent, and that is the LeafyIsHere YouTube channel. Every day this channel spreads cancer to the hundreds of thousands of users that watch his videos without them even knowing. I wish to have this channel stopped before millions more people have to suffer.