So, my request for help on their forums (since nothing else was getting a response), finally got a response:
Since we don’t want other people to have your username in the future, we don’t delete usernames (they are kept so they cannot be recycled). For more information, please see
http://en.support.wordpress.com/deleting-accounts/
I also see you’ve already deleted your blog(s). I do have a few suggestions for you if you really want to scrub the account:
1) You can go to My Account->Edit Profile and remove all data except the account name and an email address. Create a throwaway email address and change the account email to that throwaway address. This only leaves the username behind.
2) To ensure the account is locked up tightly, visit this site, generate a password of 15-20 characters, and change the account password to it:
http://www.thebitmill.com/tools/password.html
3) To learn how to hide your Gravatar profile, please read “How do I hide my profile?” section of the help page:
http://en.gravatar.com/site/faq/#answer-1-8
There’s just one teensy weensy little problem with this. I HAVE TWO ACCOUNTS WITH THE SAME USER NAME. If I log into wordpress.com using the ONE username it will randomly log me into which ever of the two accounts it feels like, this is how I found out about the 2nd account in the first place. So that whole “we don’t delete user names so they can’t be re-used” is the biggest piece of BS I’ve seen in a while.
Never mind that I never gave them permission to create the 2nd account in the first place. I sincerly hope this was done WITHOUT the knowledge of their legal folks cause its seriously stupid and less than completely legal…..