Add config toggle to suppress taxonomy display on posts

_config.yml

@@ -293,6 +293,7 @@ category_archive:
 tag_archive:
   type: liquid
   path: /tags/
+# show_taxonomy: false  # set to false to hide tag/category lists on posts
 # https://github.com/jekyll/jekyll-archives
 # jekyll-archives:
 #   enabled:

_includes/page__taxonomy.html

@@ -1,8 +1,10 @@
 {% assign locale = include.locale | default: site.locale %}
-{% if site.tag_archive.type and page.tags[0] %}
-  {% include tag-list.html locale=locale %}
-{% endif %}
+{% unless site.show_taxonomy == false %}
+  {% if site.tag_archive.type and page.tags[0] %}
+    {% include tag-list.html locale=locale %}
+  {% endif %}
 
-{% if site.category_archive.type and page.categories[0] %}
-  {% include category-list.html locale=locale %}
-{% endif %}
+  {% if site.category_archive.type and page.categories[0] %}
+    {% include category-list.html locale=locale %}
+  {% endif %}
+{% endunless %}

docs/_docs/05-configuration.md

@@ -1188,6 +1188,12 @@ tag_archive:
   path: /tags/
 ```
 
+To hide the tag and category lists displayed on each post, set `show_taxonomy: false` in `_config.yml`. The taxonomy archive pages themselves are unaffected — only the per-post lists are suppressed.
+
+```yaml
+show_taxonomy: false
+```
+
 Which would create category and tag links in the breadcrumbs and page meta like: `/categories/#foo` and `/tags/#foo`.
 
 **Note:** these are simply hash (fragment) links into the full taxonomy index pages. For them to resolve properly, the category and tag index pages need to exist at [`/categories/index.html`](https://github.com/{{ site.repository }}/blob/master/docs/_pages/category-archive.md) (copy to `_pages/category-archive.md`) and [`/tags/index.html`](https://github.com/{{ site.repository }}/blob/master/docs/_pages/tag-archive.md) (copy to `_pages/tag-archive.md`).