Threaded (or “nested”) comments are a WordPress feature that allows people to reply to individual comments on posts (or other post types that support comments). Most themes should support threaded comments out of the box. The styles for threaded comments can vary wildly from theme to theme though.
The above screenshot shows and example of a comment reply, which is what we refer to when we talk about threaded comments.
Enabling threaded comments
Enabling threaded comments is pretty simple. Go to “Settings > Discussion” in your WordPress admin. From there, you should see an option labeled “Enable threaded (nested) comments X levels deep” as shown in the above screenshot. There are two options for you to configure:
- Checkbox to enable threaded comments.
- Number of levels each thread can go.
One thing to keep in mind is that too many levels could potentially break your theme layout. Most themes should handle it, but if you have a small content/comment area, many levels might not look great. Try to pick a reasonable number of levels (I prefer 3 and recommend no more than 5).