Much of the "cursed" reputation stems from art catering to niche interests like inflation, weight gain, or "omorashi" (holding urine).
Influencers like Vannamelon have built content around ranking "cursed" fanart of their own characters, often for comedic effect. cursed-deviantart
The "cursed-deviantart" aesthetic is primarily spread through third-party platforms rather than the site itself: Much of the "cursed" reputation stems from art