I would like to delete (permban) my bitcointalk account, please.
If a mod could do so (if you need to message me, please do) I'd be grateful.

Thanks

Change your password to something random.
Change you email to something random.
Log out

That is the ONLY WAY your account will be deleted.

But that's not a deletion. I think you mean to say that deletion isn't available and that's the next best thing, right?