It doesn’t look like tags bump the topic.
I think the expired posts at the top of the homepage are probably there because I unlocked them.
Deals used to automatically close after 14 days, but I decided to remove that because I didn’t want that to signal a deal had ended. However that was only for newer deals or deals that had appeared again.
Hopefully the expired tag is a better solution. We’ll see.
Update: I’ve change the timestamp of those expired deals back to when they were opened. Hopefully the homepage is a little cleaner now.