On [this answer](https://stackapps.com/a/8981/79306), [tag:status-review] is mentioned.  For whatever reason, the tag appeared as blue instead of red.  I've also noticed that it does _not_ appear on [this post](https://stackapps.com/q/8980/79306) for some reason.  I thought that editing the post after the tag became moderator-only might turn it back to red, which is why I proposed a [minor edit to the post](https://stackapps.com/suggested-edits/2075).  Sure enough, it changed to red when it was approved, but inactive posts that aren't edited could keep the blue tag indefinitely.