HA! A small world indeed...
Well, I haven't read the Japanese EULA but I'm pretty sure, like with all software, reverse engineering of any software without the author's full written permission is not allowed etc etc. I'm pretty sure FSN falls into this category.
The problem is that if such a tool was to leak into the public, then you'd have full-size CGs spreading around the net, and if everybody sees them, then considering that the nature of a visual novel is, visual (ie images / CGs), then less people would buy it if they personally thought the game wasn't as 'good' as they originally thought. Much like buying a CD back in the days when they didn't have preview stations; it was a gamble-ish situation - you bought it and either you liked it or you didn't. Regardless of your opinion, you still bought the disc and supported the artist. I guess that's pretty much the same with software today, especially so with visual novels.
Now, if people such as the actual editors / translators in mm gets a tool, then one would expect them to act responsibly and use the tool exclusively. I mean, if such a tool was given to the public, that would hurt the visual novel company head-on and we'd see less of visual novels like FSN.... If my memory serves correct, I think mm actually scripted and compiled their own version of a repacker, which is more reason for them NOT to share their repacker.
Ok - I ain't saying you are going to distro it around the net if you do, but there are some who DEFINITELY will. I myself only wish to use it to repack our groups FHA image edits back into .xp3 so that we won't have to deal with 1000+ files sitting in a folder (which wrecks havoc with virus scanners, defragging etc etc). That plus, we need a xp3 repacker to even release a patch. And alas, we (Fate/hollow ataraxia Translation TLWiki group (yeah, still unnamed)) are asking for a point-in-direction for a FREEWARE, LEGAL repacker.
Well, just looking back at the TLWiki, it SEEMS that a xp3 repacker has been found by the head of the group. If he did, then apologies; I cannot share it for the reasons stated above. If not, the search goes on... I can almost imagine what Message's answer for your and my request is going to be...
Image editor for the Fate/hollow ataraxia English Translation Project (mirrormoon is NOT translating)
DJMax Korea Veteran Elite Member (Top 350)