how else are people going to change there region if they don't ask?
how else are people going to download roms if they don't ask? -- the point is you cannot ask!
and hmm, i'm not sure about these files, i wouldn't say they have any nintendo code in them, but, just like we are not allowed to share header files on gbatemp anymore (right?) - i don't see why we should allow people who want to check out jp shop, asking for someone's serial/unique id file.
i would not ever want to share mine, i'm pretty sure that is the id that nintendo use to ban people i could share my complete collection of all 6 region secureinfo_a files, but i would not want to take a risk that someone would cheat/hack/use a public game header, whatever, and get the id banned