Should you decide to proceed with your plan to delete your account (although I would personally prefer members to stick around), you will have to speak with Jacob or any of the other Administrators.
Okay...first of all, why? Is it because of your name, because if that's the case, just send Jacob or Mike a PM saying that you want it changed, along with the new username you want to use.
If not, just do what I just said, but instead of asking for a name change, ask them to erase your profile.