Over at the @denverpost, I have a piece up eulogizing not Twitter, but the intellectual community that Twitter once hosted. The piece is currently paywalled but here's a brief summary (1/4):
https://www.denverpost.com/2022/12/29/why-leave-twitter-seth-masket-rip-twitter/
https://www.denverpost.com/2022/12/29/why-leave-twitter-seth-masket-rip-twitter/