Stack Overflow has seen a drastic decline in question volume, dropping from a peak of 250,000 questions per month to nearly 10,000 by 2026. This decline isn't just a downturn; it reflects a disintegration of the community that once thrived there. The author traces the decline back to 2015, when the moderation culture shifted from quality control to excessive pedantry, alienating new users and driving down engagement. The community became less welcoming, creating an environment where asking questions felt fraught with risk. Over four years, site usage fell by 25%. The arrival of ChatGPT in late 2022 marked a turning point, causing a near 50% drop in question volume within two years. Stack Overflow lost users not to a competing site but to a new paradigm: AI that could answer questions without the formalities and potential penalties of the Stack Overflow environment. The shift continued with the emergence of agentic coding tools in 2024 and 2025, which allowed developers to describe their intentions instead of asking questions. This fundamentally changed the way developers interact with code and information. The author expresses a sense of loss over Stack Overflow's decline, despite its flaws. The platform was a collective achievement for programmers, a place where knowledge was shared and accumulated. While the information hasn’t vanished, much of it has been repurposed as training data for AI systems, effectively rendering the original community obsolete. The transition illustrates how the landscape of programming support has evolved, moving from communal knowledge sharing to AI-driven solutions.