Clark, while I can understand and agree in part with your viewpoint, I do have to take issue with this bit
IMHO, when a person acts like a spoiled, insensitive brat in a public forum, I think he deserves swift come-uppance from whatever authority figures hold reign.
as it begs the question, how much authority does the dojo have over your life outside the dojo.
Now, you can argue that as aikiweb is almost an adjunct to training for many people (their web dojo for want of an ability to make cool names up), dojo etiquette extends to the posts which brings in the nice sensei ses and all the rest.
Alternatively, which is my personal preference, the two are separate and James should only have been asked to leave the dojo for poor practice in the dojo or asked to leave aikiweb for breaking forum rules. They may interact on occasion, but I'm not a fan of the dojo extending beyond the limits of the practice.