diff --git a/Amazon-S3-API.md b/Amazon-S3-API.md
index 473be3a..3520bff 100644
--- a/Amazon-S3-API.md
+++ b/Amazon-S3-API.md
@@ -83,11 +83,7 @@ Not included:
 
 SeaweedFS has directories while AWS S3 only has objects with "fake" directories. In AWS S3, if the last file is deleted in a directory, the directory will disappear also.
 
-To be consistent with AWS S3, SeaweedFS tries to skip empty folders while listing. You can use `weed s3 -allowEmptyFolder` to toggle this behavior. 
-
-This is not so ideal. Another approach is to list current directory when deleting a file, which will slow down quite a bit especially when deleting multiple files. SeaweedFS did not take this approach.
-
-The last approach, which is most efficient, is to maintain counters for each folder, and drop the folder as soon as it becomes empty. This is implemented in [[Cloud Monitoring]].
+To be consistent with AWS S3, SeaweedFS tries to check whether the folder is empty after each deletion. You can use `weed s3 -allowEmptyFolder` to toggle this behavior. 
 
 # S3 Authentication