I did not know what XK meant when I joined the "other" site either, there were many threads at that time trying to teach new members that the Commander was an XK as many owners did not know that Jeep has model desigantions along with model names.
I think it is important that we incourage members from the "other" forum to check us out too, esspecially the new guys who have not developed a sence of belonging yet.