> People share code for the betterment of society, and while copyleft used to be popular early on, the software industry has been moving towards less problematic and more permissive licences. The spirit of open source is to share code, and make it possible to use it to train machine learning.

It sounds like this writer doesn't understand the point of the GPL or the distinction between free software and open source. Also quite a crude historical perspective given the increasing number of major projects licensed virally. Claiming that MITL's popularity justifies pirating GPL code makes no sense.