Could it be a change/addition or option to the HMTL exporter to let the image file names be changed (like in other dialogs like copy or anything else) and the image site now called image_15.htm be {fbas}.htm to be more SEO (Search Engine Optimalization) frienendly?
I know with some programming - and learning Ruby - I could maybe do it myself. But it would help a lot if PM would do it this way in the first place and I don't see any reason why would the current HTML naming be a better option so why not to change to a better one?