The list of comments are displayed in the order oldest to latest below a published article. Published article is my generic term for all blogs, ideas, questions etc. This approach seems to be the norm.
- Always display the main (initial discussion topic/idea etc) article prominently.
- Allow each individual to select the comment display order and save this in their profile.
- The individual can then change this at will, so, it provides flexibility.
- Display the main (initial discussion topic/idea etc) article prominently.
- Change the comments listed below the main article to display the list from latest/new down to the oldest article.