When the title of a submission doesn't do a good job of conveying what the submission is about--which is often--it would be great if a submitter could include a

When the title of a submission doesn't do a good job of conveying what the submission is about--which is often--it would be great if a submitter could include a very brief description of the contents that appears just below the title. This would save me as a reader a lot of time when trying to decide what on HN to read.