WizenedEE:
In my experience, the ability to let users delete their accounts is not very useful, and it's tricky to implement (do their posts disappear? Can their names be reused? Do threads they started disappear?
exactly, the op has 14 post, no matter of their personal opinion of those posts they are useful to the community, I personally have done a search, found a thread by someone with a handful of posts that perfectly answers my question without adding more noise to the signal.
That right there is more valuable than a random username that does not wish to participate any longer
to the OP, change your email to some junk address in your profile, other than that no one is going to judge you for asking a question, we all have our stupid ones ...