The something that happened was ChatGPT. Enough commenters didn't like the idea that everything they write publicly online is fed in as training data for AI that there's been a shift in this site's community. That, and everyone got laid off, either for section 174 or AI reasons, but Twitter employees are no longer collecting that fast paycheck and posting here. I'm sure a data scientist could make a good analysis of if what I'm saying is backed by actual data, but that's my feel based on spending more time on here than is healthy.