[Perndog]

It's not pedantic if there aren't better words to use and everyone in the discussion understands them. It's easier to say "hedonism" than "philosophy based on seeking pleasure," easier to say "subjective" than "something that is different from one person to another," and easier to say "metaphysical" than "outside the realm of physics." Jargon is created to label things in order to make discussion less wordy and easier to understand; if you don't get the words, read a damn dictionary. Or propose a better way to do it.