Twitter is still the best place if you want to get a brand's attention or follow politicians. Bluesky seems to have attracted the Big Personalities that have (mostly, but not completely) left twitter. Threads might have the user numbers for convos about Dave Grohl's extra-marital kid
But boy, if you want an in-depth understanding of how pagers can be used to kill a few high value targets and terrorize thousands more innocent brown people, Mastodon is the place to be
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