how do i get rid of this account???
You don’t. You can check out any time you like, but you can never leave.
Delete your bookmark and don’t come back. Easy peasy.
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Ha! 
The mere existence of an account has no significance. If your concern is email notifications, you can turn that off in your account preferences.
“I had a rough night and I hate the fuckin’ Eagles, man!”
Stranger
Leaving so soon?
We hardly knew you.
And on the pedestal, these words appear:
My name is Ozymandias, King of Kings;
Look on my Works, ye Mighty, and despair!
Nothing beside remains. Round the decay
Of that colossal Wreck, boundless and bare
The lone and level sands stretch far away.
We do not delete accounts or posts here.
If you want your account to be permanently or temporarily suspended (so that you can’t use it) just send me a PM or contact any of the other moderators and we can suspend your account. If you change your mind later you will need to contact us via the email that is on your account to reverse the suspension.
Or you could just do something sufficiently outrageous enough to get yourself banned. (Not advocating, just throwing it out there.)
You could also change your password to something random, and then forget it.
Just don’t save it to a floppy disk, because then you will never be able to get rid of it.
Perpetuity.
Yep, it’s real.