diff --git a/nikola/plugin_categories.py b/nikola/plugin_categories.py
index ae7654ac6f..0240b762af 100644
--- a/nikola/plugin_categories.py
+++ b/nikola/plugin_categories.py
@@ -593,11 +593,13 @@ class Taxonomy(BasePlugin):
         Whether post lists resp. indexes should be created for empty
         classifications.
 
-    also_create_classifications_from_other_languages = True:
+    also_create_classifications_from_other_languages = False:
         Whether to include all classifications for all languages in every
         language, or only the classifications for one language in its language's
         pages.
 
+        WARNING: This is deprecated and will be removed eventually.
+
     add_other_languages_variable = False:
         In case this is `True`, each classification page will get a list
         of triples `(other_lang, other_classification, title)` of classifications
@@ -634,7 +636,7 @@ class Taxonomy(BasePlugin):
     apply_to_pages = False
     minimum_post_count_per_classification_in_overview = 1
     omit_empty_classifications = False
-    also_create_classifications_from_other_languages = True
+    also_create_classifications_from_other_languages = False  # deprecated
     add_other_languages_variable = False
     path_handler_docstrings = {
         'taxonomy_index': '',
diff --git a/nikola/plugins/task/categories.py b/nikola/plugins/task/categories.py
index df1e538748..58704124ed 100644
--- a/nikola/plugins/task/categories.py
+++ b/nikola/plugins/task/categories.py
@@ -52,7 +52,7 @@ class ClassifyCategories(Taxonomy):
     apply_to_pages = False
     minimum_post_count_per_classification_in_overview = 1
     omit_empty_classifications = True
-    also_create_classifications_from_other_languages = True
+    also_create_classifications_from_other_languages = False
     add_other_languages_variable = True
     path_handler_docstrings = {
         'category_index': """A link to the category index.
diff --git a/nikola/plugins/task/tags.py b/nikola/plugins/task/tags.py
index 8e4489ce3a..4f254168ff 100644
--- a/nikola/plugins/task/tags.py
+++ b/nikola/plugins/task/tags.py
@@ -48,7 +48,7 @@ class ClassifyTags(Taxonomy):
     apply_to_posts = True
     apply_to_pages = False
     omit_empty_classifications = True
-    also_create_classifications_from_other_languages = True
+    also_create_classifications_from_other_languages = False
     add_other_languages_variable = True
     path_handler_docstrings = {
         'tag_index': """A link to the tag index.