Extension for Multisite Language Switcher plugin. All comments posted on translation-joined pages are displayed on all translation-joined posts.
You need to edit the comments.php in your theme folder if you want to store all the comments into one (primary) blog:
* activate the plugin first,
* find "comment_form" function call,
* add "MslsComments::switchBlog();" just in front of it,
* add "MslsComments::restoreBlog();" just below it,
* change the "comment_form();" to "comment_form( array(), MslsComments::postId() );",
* calls don't have to be removed if you switch off primary blog functionality.