diff --git a/src/Model/Item.php b/src/Model/Item.php
index adb0baa688..c3b759f65b 100644
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@@ -164,21 +164,63 @@ class Item extends BaseObject
 		return dba::p($sql, $condition);
 	}
 
+	/**
+	 * @brief Select rows from the starting post in the item table
+	 *
+	 * @param integer $uid User ID
+	 * @param array  $fields    Array of selected fields, empty for all
+	 * @param array  $condition Array of fields for condition
+	 * @param array  $params    Array of several parameters
+	 *
+	 * @return boolean|object
+	 */
+	public static function selectThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
+	{
+		$params['uid'] = $uid;
+
+		if (empty($selected)) {
+			$selected = Item::DISPLAY_FIELDLIST;
+		}
+
+		return self::selectThread($selected, $condition, $params);
+	}
+
 	/**
 	 * Retrieve a single record from the starting post in the item table and returns it in an associative array
 	 *
 	 * @brief Retrieve a single record from a table
 	 * @param integer $uid User ID
+	 * @param array  $selected
+	 * @param array  $condition
+	 * @param array  $params
+	 * @return bool|array
+	 * @see dba::select
+	 */
+	public static function selectFirstThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
+	{
+		$params['uid'] = $uid;
+
+		if (empty($selected)) {
+			$selected = Item::DISPLAY_FIELDLIST;
+		}
+
+		return self::selectFirstThread($selected, $condition, $params);
+	}
+
+	/**
+	 * Retrieve a single record from the starting post in the item table and returns it in an associative array
+	 *
+	 * @brief Retrieve a single record from a table
 	 * @param array  $fields
 	 * @param array  $condition
 	 * @param array  $params
 	 * @return bool|array
 	 * @see dba::select
 	 */
-	public static function selectFirstThreadForUser($uid, array $fields = [], array $condition = [], $params = [])
+	public static function selectFirstThread(array $fields = [], array $condition = [], $params = [])
 	{
 		$params['limit'] = 1;
-		$result = self::selectThreadForUser($uid, $fields, $condition, $params);
+		$result = self::selectThread($fields, $condition, $params);
 
 		if (is_bool($result)) {
 			return $result;
@@ -192,17 +234,20 @@ class Item extends BaseObject
 	/**
 	 * @brief Select rows from the starting post in the item table
 	 *
-	 * @param integer $uid User ID
-	 * @param array  $fields    Array of selected fields, empty for all
+	 * @param array  $selected  Array of selected fields, empty for all
 	 * @param array  $condition Array of fields for condition
 	 * @param array  $params    Array of several parameters
 	 *
 	 * @return boolean|object
 	 */
-	public static function selectThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
+	public static function selectThread(array $selected = [], array $condition = [], $params = [])
 	{
-		if (empty($selected)) {
-			$selected = Item::DISPLAY_FIELDLIST;
+		$uid = 0;
+		$usermode = false;
+
+		if (isset($params['uid'])) {
+			$uid = $params['uid'];
+			$usermode = true;
 		}
 
 		$fields = self::fieldlist($selected);
@@ -219,7 +264,9 @@ class Item extends BaseObject
 		$condition_string = self::addTablesToFields($condition_string, $threadfields);
 		$condition_string = self::addTablesToFields($condition_string, $fields);
 
-		$condition_string = $condition_string . ' AND ' . self::condition(true);
+		if ($usermode) {
+			$condition_string = $condition_string . ' AND ' . self::condition(true);
+		}
 
 		$param_string = dba::buildParameter($params);
 		$param_string = self::addTablesToFields($param_string, $threadfields);
diff --git a/src/Protocol/OStatus.php b/src/Protocol/OStatus.php
index 36ed3580e7..3b3775c1e5 100644
--- a/src/Protocol/OStatus.php
+++ b/src/Protocol/OStatus.php
@@ -2104,20 +2104,23 @@ class OStatus
 	{
 		$stamp = microtime(true);
 
+		$owner = User::getOwnerDataByNick($owner_nick);
+		if (!$owner) {
+			return;
+		}
+
 		$cachekey = "ostatus:feed:" . $owner_nick . ":" . $filter . ":" . $last_update;
 
 		$previous_created = $last_update;
 
-		$result = Cache::get($cachekey);
-		if (!$nocache && !is_null($result)) {
-			logger('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created . ' (cached)', LOGGER_DEBUG);
-			$last_update = $result['last_update'];
-			return $result['feed'];
-		}
-
-		$owner = User::getOwnerDataByNick($owner_nick);
-		if (!$owner) {
-			return;
+		// Don't cache when the last item was posted less then 15 minutes ago (Cache duration)
+		if ((time() - strtotime($owner['last-item'])) < 15*60) {
+			$result = Cache::get($cachekey);
+			if (!$nocache && !is_null($result)) {
+				logger('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created . ' (cached)', LOGGER_DEBUG);
+				$last_update = $result['last_update'];
+				return $result['feed'];
+			}
 		}
 
 		if (!strlen($last_update)) {
@@ -2131,10 +2134,6 @@ class OStatus
 			AND NOT `private` AND `visible` AND `wall` AND `parent-network` IN (?, ?)",
 			$owner["uid"], $check_date, NETWORK_OSTATUS, NETWORK_DFRN];
 
-		if ($filter === 'posts') {
-			$condition[0] .= " AND `id` = `parent`";
-		}
-
 		if ($filter === 'comments') {
 			$condition[0] .= " AND `object-type` = ? ";
 			$condition[] = ACTIVITY_OBJ_COMMENT;
@@ -2147,7 +2146,13 @@ class OStatus
 		}
 
 		$params = ['order' => ['created' => true], 'limit' => $max_items];
-		$ret = Item::select([], $condition, $params);
+
+		if ($filter === 'posts') {
+			$ret = Item::selectThread([], $condition, $params);
+		} else {
+			$ret = Item::select([], $condition, $params);
+		}
+
 		$items = dba::inArray($ret);
 
 		$doc = new DOMDocument('1.0', 'utf-8');