Evan-sensei & Group:
I'm just now getting caught up on the Forums and taking a look into some of the fascinating discussions taking place on George-sensei's Web. Awesome.
Knowing a bit about the Japanese language myself and knowing how seriously Lori-sensei takes her role as "woman" in the martial arts, I must admit that I was extremely surprised to see Evan-sensei's "Lori-chan" in the original post. That is, of course, until I thought harder about the fact that it was Evan who wrote it.
Bar none, Evan Pantazi is the kindest, most polite individual I have ever met in the martial arts. Evan owes me no respect, but that never keeps him from showing me more than my share--whether it be on the Net, at summer camps, or in our infrequent meetings here at home. Recognizing this, I know, as all of you know, that Evan would never knowingly insult anyone on these Forums or anywhere else.
That said, without launching into any longwinded discourse on Japanese, it is inappropriate for adult men to address adult women as "chan", unless they share some deeply intimate bond. (I originally thought that I might have missed some inside joke between Evan and Lori while I was away.)
Older men sometimes refer to (all) younger women with the "chan" suffix, but rather than being demeaning, it's a lot like calling Jennifer at the office "Jenny". You know, kind of "cutesie".
Still, please avoid referring to all but school age girls as "chan". Boys of this age, or "kohai" at the dojo or office can be referred to as "[name]-kun".
Everyone else on these Forums and in your lives should be referred to to as -san, -sensei, -shihan (in the martial arts only, of course) and the like.
Please let me know if I can clarify/be of more help.