@chronohart @shiri @snarfed.org One thing that occurs to me is the bluesky TOS:
"By sharing User Content through Bluesky Social, you grant us permission to: <lots of stuff>"
An opt out bridge simply can't obey that.. they don't have rights to grant permission to mastodon posts they don't own. Opt in they can have a TOS with similar wording that says you agree to allow that stuff to happen.
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