diff --git a/app/assets/javascripts/admin/controllers/admin-user-index.js b/app/assets/javascripts/admin/controllers/admin-user-index.js
index 0460c314c75..7bd7abe341b 100644
--- a/app/assets/javascripts/admin/controllers/admin-user-index.js
+++ b/app/assets/javascripts/admin/controllers/admin-user-index.js
@@ -199,7 +199,8 @@ export default Controller.extend(CanCheckEmails, {
 
     destroy() {
       const postCount = this.get("model.post_count");
-      if (postCount <= 5) {
+      const maxPostCount = this.siteSettings.delete_all_posts_max;
+      if (postCount <= maxPostCount) {
         return this.model.destroy({ deletePosts: true });
       } else {
         return this.model.destroy();
diff --git a/app/assets/javascripts/discourse/models/user.js b/app/assets/javascripts/discourse/models/user.js
index a7d9ce8b294..421376609a3 100644
--- a/app/assets/javascripts/discourse/models/user.js
+++ b/app/assets/javascripts/discourse/models/user.js
@@ -45,7 +45,8 @@ const User = RestModel.extend({
 
   @discourseComputed("can_be_deleted", "post_count")
   canBeDeleted(canBeDeleted, postCount) {
-    return canBeDeleted && postCount <= 5;
+    const maxPostCount = Discourse.SiteSettings.delete_all_posts_max;
+    return canBeDeleted && postCount <= maxPostCount;
   },
 
   @discourseComputed()