Viral Tank-Top effect: Content creator Zara Dar ’s outfit experiment sparks debate on how social media algorithms work The PhD scholar-turned-OnlyFans model posted identical videos in different ... YouTuber Zara Dar revealed her shift from a PhD to OnlyFans, highlighting higher ad revenue from Pornhub for her STEM videos . Zara Dar , a controversial YouTuber, gained widespread attention after a viral video where she explained her decision to quit her PhD program and become a full-time adult content creator. While her story sparked countless memes and trolling, it also opened up conversations about systemic issues within academia. Results showed significantly more views on the video where Zara Dar wore a tank top, sparking discussion on online algorithms and content virality.