Ok, you're naive.
"Illegal" probably wasn't the best choice of words, you are correct. But the savegame files are encrypted to prevent people from cheating, and people do cheat. Although for the life of me I can't figure out why they would. We've had to ban two people from PBW that we caught cheating, and we have made lots of suggestions to Malfador for security improvments that have been added to recent patches.
To allow a utility to be able crack the .gam file so you can change options Malfador would have to open up the encryption. ANd once that was done there would be no limit on what mischief people could do.
Now, what could be an option would be Malfador allowing game options changes to exsisting games. Some can be changed. The game owner can reset a player password if it's lost or forgotten. And the automatic savegame every turn can be turned on and off by the game host. The view score cannot currently, but perhaps that's something he can add. I wish he would add the ability to change the game master poassword. That would be helpful at times as well.
Geoschmo