For 3 weeks, I left GitHub Community open in a tab while I worked. The same threads came back every morning. "GOOD BYE GITHUB COPILOT". "evaluating GITLAB". "Claude Teams it is." Tens of thousands of words of anger in 6 weeks, and half the posts cited the same scribbled calculation (3900 divided by 27 makes 144 Opus requests per month on a Pro+ plan). Reddit fury doesn't translate mechanically into exodus. What's actually happening is quieter. And bigger. TLDR: GitHub multiplied the price of Opus by 3.6 in 6 weeks. That's the boring side. The interesting side, the one that changes how you pick an AI coding tool for the next 12 months, is what forced Microsoft to move. The same equation is coming for the others. GitHub just did what the 4 other major AI coding distributors will have to do in the next 12 months. Not out of malice. Because at some point, the math catches up to everyone. I'm going to name the mechanism, explain why Microsoft cracked first, and give you the order in which the rest will follow.…