Request: change username to one abandoned by another user

I'd like to change my Launchpad username to "tj" - to match my real name. There is an existing user TJ Warren with the ID but so far as I can tell the account has been inactive since 2005.

I emailed him in May to ask if he would allow me to takeover the "id" username but have had no reply (the email is reproduced below).

I know that other users have previously been able to do this when old accounts have been abandoned; I wonder if you could do the same for me?

Thanks.

TJ.

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Message-ID: <email address hidden>
Date: Tue, 01 May 2012 14:31:20 +0100
From: TJ <email address hidden>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120410 Thunderbird/11.0.1
MIME-Version: 1.0
To: TJ Warren <email address hidden>
Subject: Ubuntu Launchpad account name
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit

Hi, I was wondering if you still use or require your Ubuntu Launchpad account 'tj' - it doesn't show any activity on your part since 2005.

I've been an active Ubuntu developer and bug-fixer since 2006. As my real (legal) name is "TJ" (pronounced Teej) I would like to be able to rename my current Launchpad account 'intuitivenipple' to
something more useful and related to me. I also operate the domain "iam.tj" to reinforce to people that my name is just "TJ" :)

I wonder if you would consider changing your account name on Launchpad so that I might be able to rename my account to "tj" ?

Many thanks in advance for your consideration.

TJ.