[nordsieck]

> I think the challenge is certainly the costs of enforcement.

IMO, this is fundamentally a mismatch between how software is developed in practice and how copyright works.

If software was like a book, where it's finished and published once, then simply registering it with the copyright office would be all anyone needs to do: up to $10k/copy statutory damages is a stiff enough deterrent that few large companies would want to take the risk. And even if they did, it'd be easy to find a lawyer to take the case on contingency.

As a non-lawyer, that doesn't seem to match nearly as well with software as a constantly evolving work. But I'm not an expert - maybe periodically submitting versions is enough.