>I love that you have a problem with people calling copyright infringement "stealing", but no qualms at all about calling it "piracy" instead, which is an entirely different affair.

Pirate, verb, sense 3:

  The unauthorized use or reproduction of another's work     - to pirate software

Steal, from the dictionary, first and only sense as a verb:

  Take (another person's property) without permission or legal right and without intending to return it: "thieves stole her bicycle".

This is not that difficult to understand.