Umm You seem to be misunderstanding or refusing to see the point .
That is -
You waste resources doing it that way on the server which is badly overloaded already.Slowing every serve down.
Download time is valuable to most people and in poorer countries and rural areas they don't have the download capacity of the big cities and it takes forever to get a picture down . In the bad old days you could drink a beer in the time it took to get down one picture.
Personally I'm on a boat and it costs to get your picture down
You cant see much from a thumbnail-look at how many views of the first are made then compare to 2 and 3.
I have a personal dislike of criticising posts too. Mine is a suggestion concerning the attachments.
Your post seems pretty pointless though anyway!