As a contributor here I really try not to upload font files more than necessary, but every now and then I discover a mistake I made a little too late.

Just recently I got some feedback for another font that it didn't work with the kerning used in the Php GD library and I found the same mistake with the other fonts I uploaded during that timespan, because of this I ended up reuploading a lot of the fonts I've already submitted with that particular issue fixed (by using legacy kerning tables during export).

I'm pretty sure I'm not the only designer with this experience, which is why I suggest that you try and implement a support ticket system. At the very least you could generate a random/incremental unique number where the designer can supply this number when uploading another font to indicate whether or not this is a new font, or a reupload of an existing submission. I'm pretty sure it wouldn't take the programmers too much effort to create a minimum viable product for this. Just generate a number upon submitting and you can use this number to search among the submissions however you store them.

This also opens up opportunities to create other feedback mechanisms for designers who upload and avoid some of the forum posts on slow review times, such as a status system where a designer could see if you received this or that font, how long the queue is and which place the font happens to be in whatever queueing system you use when you validate fonts.

Thank you for your feedback. We are actually thinking about such a feature - although it is impossible for me to say exactly "how will it be done", "what will be done" or "when it will be done".