@georgia I don't understand that analogy. Yous seem to imply that the opposite of copyleft is enshrined in the law, which is not the case as far as I know. The law does not say that you must exploit people (even though it is somewhat biased towards it), it simply says that you get more or less free reign. Similarly imagine law that didn't say that murder is good, but simply said that you may allow murder on your property. Then there are people who will declare that murder is allowed on their property, and those who will declare that it is not allowed.
Now it just so happens that everyone decided to allow murder, so the few that oppose it have to go on the offensive, such as not giving passage through their property to anyone who allows murder.
@georgia well yes and then proprietary software will reign supreme. You think copyright law caused all the problems in this industry? I only distribute binary, stop me. I implement DRM, lol, stop me. I digitally sign the firmware, lmfao, staaahp meee. The reason this has even become an issue in software industry first, and only from there started to leak into other engineering industries, is because the proprietary culture has a natural advantage in neutral setting.