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What happens when their server expenses aren’t covered, or bad people move in and every message has to be moderated, or the site moderators ban you?
And getting a whole community moved over… oof.
I moved a private mailing list to a WhatsApp group, then they changed their privacy policies. It took two years to convince people on to Signal, and 2/3 of the people didn’t make the jump. And this was with a small group of people who knew each other IRL. Imagi e doing that for tens or hundreds of thousands worldwide.
This is why people are hesitant to get off Meta/Twitter. They’re not going to do it again.
Just to be clear… I’m a massive Fediverse fan, and have concerns about BSKY’s governance. But many communities streaming off Twitter seem to be heading toward BSKY because it’s a shallower on-ramp.
Mastodon people recognize this and are working to smooth down the friction points.