[red-iron-pine]

Twitter is easy to sign up for, doesn't really require any sort of actual human details, and runs entirely on essentially short text blurbs that are easy to automate, scan, parse, and track.

Retweets, ratios, and bog-standard sentiment analysis also give immediate feedback as to success of a tweet. Real easy to tweak a bot to produce content, or to game the system -- and that's before GPT-4.

Facebook at least requires you to pretend you're a real person with a real face and real friends.