Amazon S3 --- How to deal with $folder$ object

There are some useful applications which manipulate Amazon S3 objects. It seems that these tools create empty files such as "foobar_$folder$" when you create an "folder" from these tools. Maybe it is in order to distinguish which is folder name or file name.

Though Amazon S3 does not explicitly introduce "folder" concept, It seems to be de-fact standard.

But if you see these object from AWS console, you will see objects ending with "_$folder$" for all folders you have created from tools. It indicates there is difference of recognition against folder between S3 tool creator and AWS, I assume (AWS console seems to be using a character "/" as a folder delimiter.)

Why don't we bring a single collective view?