Greg -
Good post, good info., except for the comment on the poster's veracity. We can figure that out for ourselves, without resorting to a personal attack. OK?
A person who knowing makes false or misleading statements is called a 'liar'. The word is clearly defined in the dictionary and is also a legal term used in our court system. That is a statement of fact and not a personal attack. If I added some flavor to the statement to enhance the term then that could be considered getting personal but a simple statement of fact should not be construed to be a personal attack.
EP