>But think of the multi-trillion dollar companies!!
If companies want to use manpower to reimplement GPL code, then fine. It’s always funny how accommodating people are for these companies.
Some people always forget that GPL is about the end user's rights, not developer's rights. If a fortune 500 re-implements some GPL library to make proprietary, then by all means. It changes nothing for the GPL code, it's still GPL and its license should guaranty user's rights.
The point of the article is that:
1. In most areas, they eventually will!
2. If there is a permissively-licensed project in that area, at least there's a decent chance that the "reimplementation" will be a fork of that project. At that fork has a decent chance of staying open or even being merged back into the upstream. That benefits the community more than a proprietary from-scratch rewrite (which would follow from a GPL-only open-source scene)