Minify the last edit fuzzy date.

app/views/posts/_expanded.html.erb

@@ -131,7 +131,8 @@
                  
               <% end %>
               <% if been_edited then %>
-                <i class="fa fa-pencil-alt" title="Edited"></i> <%= time_ago_in_words(post.last_activity) %> ago
+                <i class="fa fa-pencil-alt" title="Edited"></i>
+                <%= time_ago_in_words(post.last_activity, locale: :en_abbrev) %> ago
                 <% if not last_edited_by_self then %>
                   by <%= link_to post.last_activity_by.username, user_path(post.last_activity_by_id) %>
                 <% end %>

config/locales/time.en_abbrev.yml

+en_abbrev:
+  datetime:
+    distance_in_words:
+      x_minutes:
+        one: "1m"
+        other: "%{count}m"
+      about_x_hours:
+        other: "~%{count}h"
+      x_days:
+        one: "1d"