Pointing a few more features at the search function has made me wish I'd done a few things differently. However, I did make one nice improvement this evening.

Now, when searching, if more than a day passed between two posts, a visual separation will occur between the posts, as well as an indicator as to how long of a time period passed between the posts. I also have it unambiguously describe the direction of the passage of time depending on if you're sorting Ascending or Descending.