Speaking of git, wouldn't it have been great if I could have just made this a Merge Reply to both of Dave's posts? Now I just made an independent post, because I don't think it belongs more to either discussion.
Of course the UI considerations of Merge Reply are daunting. Or maybe they aren't: #pleroma is doing a pretty good job of handling complex reply trees by flattening yet providing context links and popups. In that kind of interface, just adding another parent link isn't a biggie.