FEATURE: add site setting leader_links_no_follow to control whether users with trust level 3 or higher have nofollow on their links

config/locales/server.en.yml

@@ -841,6 +841,7 @@ en:
     leader_requires_posts_read_all_time: "The minimum total number of posts a user must have read to qualify for leader (3) trust level."
     leader_requires_max_flagged: "User must not have had more than x posts flagged by x different users in the last 100 days to qualify for promotion to leader (3) trust level, where x is this setting's value. (0 or higher)"
     leader_promotion_min_duration: "The minimum number of days that a promotion to leader lasts before a user can be demoted."
+    leader_links_no_follow: "Whether links from leaders have the nofollow attribute."
 
     min_trust_to_create_topic: "The minimum trust level required to create a new topic."
 

config/site_settings.yml

@@ -491,6 +491,7 @@ trust:
   leader_promotion_min_duration:
     default: 14
     min: 0
+  leader_links_no_follow: false
 
 security:
   use_https: false