[Config] Decouple default blacklist from user customization

config/danbooru_default_config.rb

@@ -85,17 +85,17 @@ module Danbooru
 
     # Set the default level, permissions, and other settings for new users here.
     def customize_new_user(user)
+      user.blacklisted_tags = default_blacklist.join("\n")
       user.comment_threshold = -10
-      user.enable_keyboard_navigation = true
       user.enable_auto_complete = true
+      user.enable_keyboard_navigation = true
+      user.per_page = 75
+      user.show_post_statistics = true
       user.style_usernames = true
-      user.blacklisted_tags = 'gore
-scat
-watersports
-young -rating:s
-loli
-shota
-fart'
+    end
+
+    def default_blacklist
+      []
     end
 
     # This allows using statically linked copies of ffmpeg in non default locations. Not universally supported across