If you want to get rid of threading completely you can control it in Settings
> Discussion
> Other comment settings
> Enable threaded (nested) comments
.
If you want to keep functionality and markup, but change it visually you would need to do that via CSS, which (as per comment on your question) is not really WordPress-specific.
Related Posts:
- How to deal with small scale comment spam on small commercial sites? [closed]
- Get comments for more than one post
- Add placeholder attribute to comment form fields
- human_time_diff() returns “48 years ago” for all comments
- “Categories” for comments?
- Allow anonymous comments, but prevent spam [closed]
- Where to remove from comment’s feed?
- Why are default comments deprecated?
- Comments Reply Form
- Allow guests comments on single post
- Delete all user comments
- Why do I get email notifications about comments that WordPress has already determined are spam?
- “Leave a comment” link even when you can’t
- Display number of comment replies
- User can post only one comment per day on one page
- customize comment form
- How to check if commenter is the_author?
- Strategies for coping with hyperagressive spambots?
- Relaxing unescaped HTML filtering inside tags?
- How to save new comment as custom comment type?
- Should I still worry about paginated comments with the latest wordpress versions?
- WordPress unresponsive after calling wp_update_comment()
- edit comments capability for authors
- Publish a message on facebook after having posted a comment
- How can I edit the Twenty Ten Theme to remove the comments box when a page uses a specific template?
- Highlight Author Comments issues
- Users with custom roles can’t read each other’s comments
- Why is_wp_error() is not returning false even there’s no defined error
- Separete trackbacks/pings and numbered comments
- How can I fix wp_insert_comment failure when ‘comment_content” includes slanted apostrophe in Excel csv source data
- Show comments in a popup
- Is WordPress vulnerable to “comment posting forgery”?
- How to display html in only the first level of WP comments?
- Set noindex page-comment from Pages 2, 3 and More?
- How can I convert anonymous commenters into registered users?
- How can I edit comment notification email content?
- your comment awaiting moderation message sometimes not appearing
- Limit comments per user per post
- Filter In Reply comments from WordPress Admin Panel
- How can I hide the IP of registered commentators?
- How to automatically evaluate comment content without user seeing the delay?
- Notify post author for a new comment on his post?
- Allow the comment author to delete their own comments
- css hide all the comment reply links except the lowest nested comments
- Spammers attacking my WordPress Site – Removing URL field from core? [closed]
- I wish to remove, disable or hide the comment authors’ links to their sites from my home page
- Admin can enter JavaScript – potential security risk?
- custom hooks before a comment is updated/edited in the database
- Replace comments with a dummy text
- Disable only the comment form/box itself?
- anyone can help me to know whats going wrong? [closed]
- How to hide wordpress post comment form for specific role
- How to customize the title from comments form?
- How to display comment meta under each comment content
- Why there is still an approved comment after deleting all?
- Custom comment field not showing when logged-in
- get_comment_author_link not working properly
- Comments numbering on multiple pages
- disable reply comments on depth equals 2
- Problem with comment box
- Display last comments on home page
- How to show last comment on hover?
- Users moderate own comments
- Problem in getting user comments permalinks
- Permalink structure and dedicated comment pages
- show comment with statuse
- Critical error – can’t post comments
- How to add code for wp-comments-post.php over functions.php?
- Is there a way to export WordPress comments to a non-wordpress, HTML coded site?
- How to show a list of comments on home page from all posts?
- WordPress Custom Local Avatar not showing in comments
- How to get the current post ID in comments.php?
- Change commenters email to display name
- wp list all users who haven’t commented on a post
- Adding buttons to wp-admin/edit-comments
- Faulty comment.php, comments won’t show up after posting?
- How to enable reply button on mostly deeply-nested comments? [closed]
- Why is a old comment reply comment appearing at end of comment list as well
- Comments closed only for contributors
- Adding Parameters to get_comment
- Comment-Meta doesn’t work with latest wordpress update
- Sort post by last commented
- Listing comment author role code problem
- Disqus resetting comment count to 0
- How to allow special characters in comment name?
- Deleting users do not deletes coments
- Auto-deleting comments that trigger the blacklist
- modifying the comment form
- Show count of all comments by meta_value from a users posts
- Migrate comments to Disqus
- Where to insert get_comments?
- Overflow and Comments
- How to modify the comments list in WP & BuddyPress? [closed]
- Is there a plugin that can replace WP comments with Facebook comments as used by TechCrunch? [closed]
- prevent duplicate comments using wp_insert_comment
- I need help about wordpress of members section
- How to disable comments on new blog post, but allow on new products?
- Customize the new comment notifications sent to the post author after the comment is approved
- Get approved comments or comments that the author is me
- Show/Hide comments