YouTube has become a great showcase for audiovisual products and a source of income for a number of creators. Several pioneers of internet animation migrated to this platform to provide greater visibility and economic security for their productions. A group of YouTubers, so-called ‘Reply Girls’, achieved rapid economic benefits by publishing content without any value, neither artistic nor communicative, but that deceived YouTube’s remuneration system and prioritization algorithm. To fight this phenomenon, YouTube subsequently applied changes to its prioritization algorithm and monetization plans. In this article, the author examines more than 3,300 videos published by 25 animation channels between 2006 and 2018 with Digital Methods tools to analyse how the changes applied to the platform policies have influenced and shaped the evolution of animation production on the internet.