TXP Tips in the Comments category:
Most commented articles
Display a list of articles based on the number of posted comments, optionally limited to a specific time frame.
Using txp:variable to improve your comment header
Using txp:variable to improve your comment header.
Live preview of comments
Add a live preview feature to the comments on your site.
Recent comments output
How to change the output of the recent_comments tag.
Personal greeting in comments form
Display a personal greeting to your site visitor if they have previously left a comment.
List articles by most recent comments
How to display a list of articles sorted by the most recent comments.
Who posted the latest comment
How to display the name of the person who posted the latest comment for an article.
