Judging by the identical IP-generated Gravatars, "Jeet" now has at least five "unregistered" accounts(that I've found): 1 2 3 4 5
And going by syntax and topic, likely at least one proper account that s/he may not even be aware of anymore, given the "seen" date.
It seems like the system should be reconciling the unregistered ones at minimum, no? Or is it one of those things there just isn't an especially good solution for?