diff --git a/src/middleware/header.js b/src/middleware/header.js
index e35cc0e333..b9eacca002 100644
--- a/src/middleware/header.js
+++ b/src/middleware/header.js
@@ -82,6 +82,7 @@ module.exports = function (middleware) {
 							uid: 0,
 							username: '[[global:guest]]',
 							userslug: '',
+							fullname: '[[global:guest]]',
 							email: '',
 							picture: user.getDefaultAvatar(),
 							status: 'offline',
diff --git a/src/posts/user.js b/src/posts/user.js
index dd050ddd3e..2ada0b2dd3 100644
--- a/src/posts/user.js
+++ b/src/posts/user.js
@@ -12,12 +12,21 @@ module.exports = function (Posts) {
 	Posts.getUserInfoForPosts = function (uids, uid, callback) {
 		var groupsMap = {};
 		var userData;
+		var userSettings;
 		async.waterfall([
 			function (next) {
-				user.getUsersFields(uids, ['uid', 'username', 'fullname', 'userslug', 'reputation', 'postcount', 'picture', 'signature', 'banned', 'status', 'lastonline', 'groupTitle'], next);
+				async.parallel({
+					userData: function (next) {
+						user.getUsersFields(uids, ['uid', 'username', 'fullname', 'userslug', 'reputation', 'postcount', 'picture', 'signature', 'banned', 'status', 'lastonline', 'groupTitle'], next);
+					},
+					userSettings: function (next) {
+						user.getMultipleUserSettings(uids, next);
+					},
+				}, next);
 			},
-			function (_userData, next) {
-				userData = _userData;
+			function (results, next) {
+				userData = results.userData;
+				userSettings = results.userSettings;
 				var groupTitles = userData.map(function (userData) {
 					return userData && userData.groupTitle;
 				}).filter(function (groupTitle, index, array) {
@@ -38,7 +47,7 @@ module.exports = function (Posts) {
 					}
 				});
 
-				userData.forEach(function (userData) {
+				userData.forEach(function (userData, index) {
 					userData.uid = userData.uid || 0;
 					userData.username = userData.username || '[[global:guest]]';
 					userData.userslug = userData.userslug || '';
@@ -48,7 +57,7 @@ module.exports = function (Posts) {
 					userData.picture = userData.picture || '';
 					userData.status = user.getStatus(userData);
 					userData.signature = validator.escape(String(userData.signature || ''));
-					userData.fullname = validator.escape(String(userData.fullname || ''));
+					userData.fullname = userSettings[index].showfullname ? validator.escape(String(userData.fullname || '')) : undefined;
 					if (parseInt(meta.config.hideFullname, 10) === 1) {
 						userData.fullname = undefined;
 					}
diff --git a/src/topics.js b/src/topics.js
index d4f78801aa..5f744316c0 100644
--- a/src/topics.js
+++ b/src/topics.js
@@ -115,6 +115,9 @@ Topics.getTopicsByTids = function (tids, uid, callback) {
 				users: function (next) {
 					user.getUsersFields(uids, ['uid', 'username', 'fullname', 'userslug', 'reputation', 'postcount', 'picture', 'signature', 'banned', 'status'], next);
 				},
+				userSettings: function (next) {
+					user.getMultipleUserSettings(uids, next);
+				},
 				categories: function (next) {
 					categories.getCategoriesFields(cids, ['cid', 'name', 'slug', 'icon', 'image', 'bgColor', 'color', 'disabled'], next);
 				},
@@ -136,11 +139,11 @@ Topics.getTopicsByTids = function (tids, uid, callback) {
 			}, next);
 		},
 		function (results, next) {
-			if (parseInt(meta.config.hideFullname, 10) === 1) {
-				results.users.forEach(function (user) {
+			results.users.forEach(function (user, index) {
+				if (parseInt(meta.config.hideFullname, 10) === 1 || !results.userSettings[index].showfullname) {
 					user.fullname = undefined;
-				});
-			}
+				}
+			});
 
 			var users = _.zipObject(uids, results.users);
 			var categories = _.zipObject(cids, results.categories);
diff --git a/src/user/settings.js b/src/user/settings.js
index 6ab1ba6816..1a42222acf 100644
--- a/src/user/settings.js
+++ b/src/user/settings.js
@@ -12,7 +12,7 @@ var pubsub = require('../pubsub');
 var LRU = require('lru-cache');
 
 var cache = LRU({
-	max: 1000,
+	max: 2000,
 	length: function () { return 1; },
 	maxAge: 1000 * 60 * 60,
 });