[dsiroker]

Fun fact: Photoshop does exactly that if you open images of currency. See: https://helpx.adobe.com/photoshop/cds.html

[can16358p]

As if anyone who really will print money can't open in GIMP.

[petesergeant]

Probably useful to stop 12 year olds from "accidentally" committing felonies though

[yieldcrv]

It used to just give a warning