I have nothing to do with this other than reading the posts however, I did feel compelled to reply.
First off, I am glad to hear Superior is doing better than ever. It's always nice to know companies are prosperous, especially with the slow economy.
As for Joe P's post- I would refer to the first amendment, freedom of speech. He has a right to inquire or ask questions and speak openly and freely. Now, if there is an underlying agenda to his post, then it is very unethical and shame on him. However, he still has the right to speak freely.
As for your reply, it's disturbing to me that you would threaten legal ramifications over something so trivial. One can make a statement in their own defense without these kinds of threats. I completely understand how this type thing can upset you but firing off threats of legal action isn't what I'd call a proper response.
What if he is a prospective customer that was simply looking into a rumor he heard from one of your competitors? If this is the case, I'd venture to say you probably blew it.
Just food for thought....