Yes, radrd and Ebonyks, you are right, there is another side to the story, and no, I don't have all the facts (one can assume only Jude and the un-named person do). Said Amp maker has his own web site, and is free to respond any way he likes, he also has a platform over at Headwize if he so wishes.
Walking into Head-Fi is like walking into someone's club house, in this case it's Jude's club house. The front door is open to anyone who wants to walk in and start talking to other people at the "party", so long as they are good guests and don't violate any of the posted rules of participation. However, if one person comes in and makes a mess, breaks the rules, or just plain rubs Jude the wrong way, Jude has the right to dis-invite them from coming back into *his* club-house, for any reason he wishes.
I'm sure there are plenty of people you can think of that you would rather not want to hang around with and wouldn't want in *your* house, due to whatever disagreements you have had in the past, whether you were right or wrong in those disputes, the bad vibes are there, and you are under no obligation to entertain that person in *your* home.
My point is, I know I would not be alone in being outraged and upset if due to this one individual Member, whatever his beef, Head-Fi had to be shut down permanently or even temporarily, due to our host's being reasonably unwilling to have to deal with expensive lawsuits from anyone with a gripe.
Being responsible for the curtailing, limiting, or removal of this web-site is not going to make you a very popular dude in the headphone community. IMO, this would not bode well for one's business. Threatening Head-Fi would not be "justice" for the thousands of members here who participate and have helped to build this site into what it is today.
EDIT: As a member with over 4000 posts here who has devoted a LOT of his free time and energy into the site, I can't help but feel some small sense of personal "ownership", maybe others feel the same way or can relate. When I see Head-Fi *potentially* being threatened, I feel threatened too by extension, and I'm getting emotional. I don't want anything to happen to Head-Fi, that's all! I am going to go and chill out for a bit. Later!