People should most definitely have all of their pictures up. Busy time of year or not, it was in the guidelines when everyone first signed up. When people work so hard on their crafting and send it off, it is only fair and respectful to post the pictures of the the received items.
I wonder if next year we should have a deadline for pictures and if they aren't up by that date then it will be noted in their feedback.
I think it's also ok for people to post pics of the items sent if their partner hasn't, isn't it?