Stack Overflow questions per year

As global influencer marketing spending surged from $1.7 billion in 2016 to over $21 billion by 2023, Stack Overflow questions per year declined, producing an inverse correlation of -0.9662 that suggests the tech industry's collective intelligence is being reallocated from solving coding problems to paying people to hold products on Instagram. The programmers who once asked strangers about JavaScript closures are now either answering to ChatGPT or being managed by someone whose title includes the word 'creator.' The influencers, for what it is worth, have not yet posted a tutorial on binary search.

Influencer marketing spending grew explosively as brands discovered the ROI of social media partnerships, expanding from a nascent industry in 2016 to a multi-billion dollar category by 2023, driven by Instagram, TikTok, and YouTube creator ecosystems. Stack Overflow question volume peaked around 2014 and declined through the late 2010s and early 2020s as AI coding assistants—GitHub Copilot, ChatGPT, and similar tools—began answering programming questions faster than community forums could. The inverse correlation reflects two separate technology trends: the maturation of creator economies and the disruption of knowledge-sharing platforms by AI.

Two industries on opposite trajectories—one ascending, one being disrupted—will always produce a strong inverse correlation over a shared window. The influencer did not kill Stack Overflow; the large language model did. The influencer just happened to be growing at the same time.