The first one, was a mistake. In fact, it's posts (on Blue Planet) have now been attributed to this one.
HOW the first one got deleted, is still a mystery. All I can suspect is that it was during the beginning of my "War on Spam" while I was still sorting out processes and the like, for which I do apologize.
I personally have not however gone and deleted any additional accounts under that name since the first one accidentally on 07-25-2011, 12:52:56.
No worries though. The process for ban trigger establishment is now such a way that you won't have to worry about being accidentally banned (since it will now actively check against existing members, especially those with posts and login activity), and even then, since you have posts, you should not be getting deleted. (of course, you never were supposed to be deleted in the first place).