I get what you're trying to say but I disagree that you can conclude that from this story.
Apple, Google, Samsung, Microsoft and many others who are "getting profit from doing anything useful" sue each other every other month.
Apple, Google, Samsung, Microsoft and many others who are "getting profit from doing anything useful" sue each other every other month.
Yahoo didn't engage in software patent aggression before. So whatever the case, acting as a software patent aggressor shows deterioration of company ethics and usually signals that they can't compete on merit.