Recently, you undid my revision to {{main}} to make it use {{ll}} instead to automatically localize link names, with the summary "It does not localize". I am confused. As you can see on {{localized link/ja}}, the pagenames are automatically changed into their Japanese translations. The changes also hadn't been propagated to the translated versions yet.
Topic on User talk:Shirayuki
Passing a second parameter to {{ll}} overrides the automatic localization of link names, so they are not automatically localized. Using that template compromises readability.
But if the corresponding parameters are empty, as {{main}} is often used, the second parameter would not be passed. By readability, if you mean that of the template code, that can easily be fixed by enabling syntax highlighting.
I'll go ahead with restoring the edit in a day.