If you accidentally create a large map, it generates an absurd amount of map files on the server. I would like to clean these up, but I don't want to remove any that were actually created on purpose. It would be nice if there was some sort of "undo" or "delete" to remove specific image maps.

I can 99% confirm that this is indeed a pretty huge issue. We have been using image2map on our server and after just a few minutes of people using it, around 1000 map files were generated, most of them probably unused, have been generated. After that we have been experiencing lag spikes every 5 minutes, deleting map files from the word folder seemed to fix that issue.