[MENTION=17607]Pauper[/MENTION], I'm having trouble deciding whether you are more informed and being a bit rude about it, or you're just not used to the same definitions of words as I am.
I'm guessing the issue is that, when you say Hackmaster was a 'parody', what I read into your explanation is that WotC had no choice but to allow the use of their intellectual property because the use was protected under the First Amendment as parody. That's possible, but we'll never know that, because it was never adjudicated in court. And the reason it was never adjudicated in court is that Kenzer & Co had a license to the AD&D rules that they 'parodied' in Hackmaster, and when Kenzer & Co has the chance to do so after the expiration of their license, they instead chose to redesign the game to remove the AD&D references and make it a truly independent game, more 'inspired by' than derivative of old-school AD&D.
Admittedly, we don't have many concrete details on any of this, but the details we do have don't support a 'Hackmaster was a protected parody of AD&D' theory. Was it a 'parody' in a non-legal sense? Sure, but then again so were the old Munchkin d20 books published by Steve Jackson Games -- and even those were published under the d20 license, not as a protected parody of D&D 3E.
Maybe I'm being a bit nit-picky, but my experience is that people who read these accounts don't remember them as being some dude's remembrances and repeat them as if they were gospel. If I can help correct the record occasionally, I don't mind doing so.
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Pauper