I can't seem to find anything about this on the FAQ, so I'll go ahead and ask: for posts that are a joint top-level (posted by only one account but jointly written by two players with two characters speaking/posting at the same time), how would this count for AC for the character account that didn't post the top-level?

Will I need to consider each thread in the network post a separate AC link, or will I be able to link the top level alone and group them all in a single link? Also, is there a way to count the top level comment for my AC as well despite not being the one who posted it?