Otherwise, we would live in a world in which anyone could sue at any time for anything that they don't like, even if they haven't been personally affected by it. We need to limit the number of suits that may be brought, so that standing requirements are strictly enforced. Bates pulls out a cigar and lights it. He puffs on the cigar, then takes a long draw and holds it. When he exhales, he covers you with smoke, and he grins widely.
Nobody is hurt, so nobody can sue.
You start to cough, but stop yourself in order not to give him the satisfaction. That's not true. Lots of people are hurt when the GPL is ignored. You try to think fast. If Red Hat supplied the code under the GPL, then Red Hat has a right to expect that anything you do with the code will be freely available for them to use in the future.