Every user has of course the right to delete his or her account. The reason
for the site to not provide a button for doing that directly is that we like
to try to offer help to anybody that wants to quit the site for some specific
problem but specially to ask them for permission to keep their contributions
to the forum, optionally attaching those to an anonymous account.
With the current set-up, if you could delete your user account wholly on your
own all the forum threads that you started would disappear, so lots of
helpful replies and conversations would be lost and that's usually not the
intention of the user leaving the site. So if someone wants to delete an
account, we ask about what to do with those contributions and comply with the
desire of the user.
So no, this isn't the Hotel California of the Internet, you can leave anytime
you want but we'd rather have you or at least your memories around to make
the community stronger :)