sentences:  on social media.The hashtag spread among multiple YouTubers, who gave their support to Walker and Channel Awesome and relaying their own stories of issues with YouTube's copyright system, including Dan Murrell of Screen Junkies, GradeAUnderA, and Let's Play producers Mark Fishbach (Markiplier) and Seán William McLoughlin (Jacksepticeye).Ten days later, on February 26, 2016, YouTube CEO Susan Wojcicki tweeted a link to a post from the YouTube Help Forum and thanked the community for bringing the issue to their attention.