I've never understood how this sort of license requirement is supposed to be enforced. In GPL v2, if I get the binaries, that gives me the right to request and

I've never understood how this sort of license requirement is supposed to be enforced. In GPL v2, if I get the binaries, that gives me the right to request and receive the source. Simple enough. With this kind of 'network sharing' license, who has standing to request source from me? Can anyone who visits my website effectively request a code audit, to ensure that the software that I'm using is standard and unmodified?