I had an idea that would be good as a kind of year in review activity that also makes use of the bump sort here. It's something we all can do.

Find a user that has posted something unique to the front page. Click on their username to browse their posts. Find the best thing they ever posted. Upvote and comment on it. Commenting on it will pull it back to the front page for other people to see.

There is a good chance since we have a lot of new users that many people have not seen that post.