@adamrobezzoli writes:
I saw your post (“Changing the type of an existing Tumblr post”)—that’s a great tip. Thanks for sharing! Do you know if something like this might be possible for changing the author of a post in a group tumblr?
Glad to help!
As far as I’m aware, there’s no way to do this. Allowing author changes incautiously could cause real problems – a malicious user could make someone else the author of an unflattering post, or take authorship of a good one. It’s also possible that Tumblr’s code assumes that the currently logged-in user is the one posting in enough places to make implementing author changes a headache. Arguably, if you’re a blog admin, you should still have the power to change authorship among the members of that blog, but until Tumblr explicitly announces such a feature, don’t hold your breath.