How would that ever be enforced? Do you not run into WinRAR/Sublime problem of "ey you've been using this, pay us, please"?

At 50k USD / year revenue it would be impossible, probably a lot easier at 1m / year. Higher profile use cases are known, and companies tend to comply with licenses rather than pirate software. Just like now, you lose a lot of control as soon as your source is available.