Ok, that headline might have been slightly misleading! It's not precisely Mello who you'll find ranting and sharing Death Note news on YouTube, but it's one of his biggest fans.
Long term members of the Death Note fandom are bound to have run into MihaelKeehl (aka Mihael J Keehl, aka Chase Keelan, aka Chase Keehl) in places like MangaBullet, FanFiction.net, Adult Fan-Fiction and DeviantART before now. His avatar on some of those sites is reproduced left.
He's just launched his own Death Note YouTube channel to keep us updated with all that's happened officially and with the fandom alike. I've embedded his introductory vlog above. If you wish to subscribe to hear video Death Note news, then hop on over there.