If I remember correctly, they just showed up one day and started posting.
The moderated B5 Usenet newsgroup and one having to do with Marvel are the two places JMS is known to post to, primarily because the moderators screen *each and every* post for story ideas. Although we are a moderated newsgroup, one can post here and have it public before one of us even *sees* a post. Therefore, JMS will never show here. It's fine, though; Lyta does a great job of disseminating his stuff to those of us whose Usenet software keeps on frelling up (i.e., me. /ubbthreads/images/icons/smile.gif )
Alex Zahara posted here once, but has not been seen since. (Wonder if I'll ever get to see him with normal hair. /ubbthreads/images/icons/wink.gif )