I haven't tested it yet, but what happens if I remove one of the language strings.
'a_commented_body' => "Your answer on ^site_title has a new comment by ^c_handle:\n\n^open^c_content^close\n\nYour answer was:\n\n^open^c_context^close\n\nYou may respond by adding your own comment:\n\n^url\n\nThank you,\n\n^site_title",
Let's say I just write:
'a_commented_body' => "You have a new comment, check out: ^url\n\nThank you!",
Will it cause errors?