So...have I got this right? Character limits:
- 280 ex-Twitter (still huge, owned by the loathsome Musk; fatally flawed)
- 300 on Bluesky (13.5m users; some good people on it)
- 500 on Mastodon (Tweetdeck-like, 10m users, seem nice people)
- 3000 on LinkedIn...
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