And what would be the point of doing that? You have to have some behavioral outcome you expect. Do you expect people to react by not running the program? Why?

And what would be the point of doing that? You have to have some behavioral outcome you expect. Do you expect people to react by not running the program? Why? If you find out that they are in fact still running the program just as much with the warning in place, because they aren't reading the warning... then have you actually "warned the user"?