You shouldn’t copy that file, precisely because it is too bulky. About half of it is implementation of submission form, which was entirely replaced with comment_form() function around that time.
So the answer why was it deprecated is roughly:
- Newer code is more compact
- Markup belongs in theme
For better and more relevant comments.php example look at core themes, such as twentyfifteen/comments.php.
Related Posts:
- How to rearrange fields in comment_form()
- Removing the “Website” Field from Comments and Replies?
- How to add a class to the comment submit button?
- How to wrap submit button of comment form with div
- comments reply script not working
- How do I set up real anonymous posting in bbpress forums? [closed]
- How to allow the reply link to remain on the comment form after I have reached my 10 nested comment limit?
- Using filter to add additional fields to comment_form()
- Comments Reply Form
- Does WordPress Allow Blank/Empty Comment Submissions In WordPress?
- Comment form not showing up without comments
- Programmatically block commenting by restricting view of comment form
- How can comments be submitted when I don’t have a comment box on a page?
- Custom Field Added In Comment Form Not Showing In Edit
- Add a drop down list to comment form?
- How To Remove The “Click here to cancel reply” Link From The WordPress Comment Form
- customize comment form
- How to save new comment as custom comment type?
- WP comments form (custom) is displaying an extra comment field
- How to modify comments form using comment_form()?
- How to add enctype to multipart/form-data to comment form?
- Changing position of cancel_comment_reply_link and other elements of comment form
- Publish a message on facebook after having posted a comment
- Edit Comment_Field while using T5 Comment Textarea On Top-Plugin
- Disable comments
- How to add attributes to the comment form tag?
- Comment form connection to Gravity Forms
- The comment login form is visible to me but not to the user
- Change order of comment fields
- How to call my custom WordPress Comment form without getting the comments?
- Create comments.php form of custom HTML code
- How can I test why the comment hook is not working?
- How can I convert anonymous commenters into registered users?
- comment_post action hook running on page load instead of after a comment is posted
- Add class to comment form div when comment-reply button is clicked
- To whom do emails get sent via the WordPress comments form?
- blank page after submitting a comment
- Notification if Comment Author Field is left empty. E.g. change input border colour
- Assign author to comment from post edit page
- How to retain comment text on comment form after login/registration?
- Ajax submit comments
- Why could my comment_form variable not be working?
- Display avatar with comment form?
- How to make comments private for commentor and post author
- Name of comment field differs on different sites
- comment_notes_before not working
- Add comment_meta to wp_comment_reply
- How to create post comment from different domain
- Get comment id of the individual comments in comment list when modifying comment posted using comment text filter
- How can I embed comments plugin to my own website?
- Custom comment field not showing when logged-in
- Comments on future posts
- get_comment_meta not behaving as expected
- unsetting required fields in the comment reply form
- Returning error upon comment being flagged as spam
- Clicking Comment “Reply” Button only replies to first comment
- How to filter comments by comment_meta
- Changing the Comment Fields using Filter (without success)
- Cannot Remove Title Reply from Custom Comment Template for Signup Page
- comment just attachment .. reply just text … can I do that?
- Custom sort comments with select form
- Same comment section on every page
- Update post “A” on comment submition on post “B”
- How to display replies to his comments in user profile of current user
- reply comment below the comment box without reload page
- Force to show all fields in comment forms to the logged-in users
- Top rated posts Average rating issue
- Comment Form Fields when user logged in
- Author name length character limit?
- Check if comment author has url
- How to make comment reply available only for login members of a certain user roles only?
- How to call out the date of user’s first comment?
- How to pass settings to comment_form() if theme only uses comments_template()?
- edit comments in front end
- How to replace anonymous comment form with a registration form on wordpress?
- How to add a class to comment submit button?
- WordPress Commenting System User access and Security
- Comments.php is not getting called on main blog page
- How to enable truly anonymous posting in bbPress forums? [closed]
- Comment section not appearing on posts
- reply to comment excerpt instead of author in comment title
- Adding restrictions to open comments
- wp-editor-area textarea disapear on cancel-comment-reply-link click
- Comment form – different title if no comment yet
- Display Comment Form on dedicated Page for each post
- WordPress Comments jQuery Doesn’t submit
- Commentform – Hightlight invalid fields instead of prompting towards error page
- Insert comment and still use moderation
- Need an advice about comments
- Actual comments not showing, but form is?
- add field comment [duplicate]
- How to remove or customize “Comment” in comments form?
- How do I convert users who put an email and username for a comment into registered users? [duplicate]
- Clicking Comment “Reply” Button only replies to first comment
- Merge comments from Facebook with WP comments [closed]
- Why default comment fields don’t show up?
- How to enable truly anonymous posting in bbPress forums? [closed]
- Replace Entire Comment Box with Text
- How to hide and disable URL and email fields from comments?
- Show success message on comment submit when email and name is not required field