Frontend: a neat row of polished reaction buttons that users click without a second thought. Backend: absolute chaos of tiny creatures frantically running around, sweating, electrocuted, and desperately trying to process each reaction in real-time. That one-pixel-perfect button your designer insisted on? Yeah, it's powered by a poor backend dev having an existential crisis while juggling database transactions at 3 AM. Meanwhile, the frontend dev is already at happy hour showing off the "clean UI."