It could be conditioned to revision. If you want to have your posts moved, they would be checked over by the moderation at server B.
But the fact that not even that is an option in the first place means this is a nonstarter for anyone who is interested in keeping the history of their presence.
How could it though ? Posts on server A might not be allowed on server B ?
I’ve always assumed post migration would never be a thing becase of that.
It could be conditioned to revision. If you want to have your posts moved, they would be checked over by the moderation at server B.
But the fact that not even that is an option in the first place means this is a nonstarter for anyone who is interested in keeping the history of their presence.