"Why would Bluesky roll out a direct message system that they have acknowledged is not the long term direct message system they would like long term?"
Exactly the same reason Mastodon added DMs (now called Specific People posts) in response to an earlier mass exodus from Titter;
"... Bluesky wanted to provide a feature-complete platform from the perspective of a user who is looking for an exit from Twitter now."
#ChristineLemmerWebber, Nov 2024
https://dustycloud.org/blog/how-decentralized-is-bluesky/
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