In the minds of everyone who is not in the group that makes that distinction it sounds like you're trying to justify something. It's essentially identical to the argument college kids make to me all the time: "I'm not stealing anything, I'm pirating it." Of course you are, but if I explained this issue to, say, a Senator, they would say it's stealing. At that point, yes, correct said Senator, then you're in a real discussion about a real issue. Swooping in and correcting some guy who casually uses the term "stealing" on an Internet form just grates on me because you sound like those college kids trying to justify themselves.