User-agent:
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.13) Gecko/20101207 Lightning/1.0b2 Thunderbird/3.1.7
I've noticed when you generate an SSH key, the program will place a
comment at the end of the key file in the form username@machinename.
Launchpad will print this comment in your user profile, so anyone that
accesses your lp profile will know your username if you happen to have
saved a key there.
I recommend opening the public key file and changing your username to
something else.