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Twitter's Traffic Falling Relative to Bluesky
(futurism.com)
This is a most excellent place for technology news and articles.
I think it was mostly that Mastodon wouldn't send referer headers.
So when people look at where their traffic comes from, 50% would be unknown, 20% would be Twitter, 10% would be Bluesky, and most importantly, Mastodon would never show on that report.
(Numbers made up and inaccurate.)