Maybe some sort of color scheme or lightening (e.g. downvoted comments) of the time stamp on the comments? i.e. the longer the period since the comment was mad

Maybe some sort of color scheme or lightening (e.g. downvoted comments) of the time stamp on the comments? i.e. the longer the period since the comment was made, the lighter it appears? (Maybe a non-linear function related to the time the initial story was posted?)