It's not our policy to delete general profiles of users on the site. If you wish no further use of the forums simply go into your profile settings and change your registered email address for the account to something random (eg fnaor@adfoai.adfa). Then simply log out of the site and delete any bookmarks/favourite links you have on your browser. From then on the site won't contact your email address and you won't have further contact with the site itself.
You are also free to delete any links you've placed in your posts to your website/portfolio as well as any photos. (we would generally hope members to keep most post data intact and not abuse the edit post feature).
In the interests of not creating a "swansong" situation I have locked this thread, however if you have further questions please feel free to send my a private message and I'll do my best to resolve them.