What I really don’t like about this is firstly someone who profits from a business is ethically bound to pay for what they use to generate their profit, and secondly it sometimes results in the free for non-commercial use being ended for everyone who benefits correctly for non-commercial use. It’s actually just plain selfish on both fronts for such businesses. They should be shamed just like they have shamed themselves in this photo publicly.
As much as I promote free and open source software anyone also has the right to copyright their work if they so wish, and all licenses should be respected whether open or proprietary.
2012: The London Olympics, Baumgartner jumping from a balloon, and TeamViewer revealing someone wasn’t using the right licence