[Commons-l] Suggestion for improvement

[Daniel Schwen]

> He then tried to upload his improved version of the image.
[..]
>    Long-term solution: Replacing the image should be transparent. He
>    should not have to care where it is hosted, it should just be replaced
>    wherever it is.

Apart from the valid points, I believe this is a fringe case. The case in 
which you should upload over existing images are few. The alternative of 
uploading with a new filename doesn't seem so counterintuitive to me that it 
should deterr a lot of contributors. But I could be wrong here.