SDN does not delete posts unless they violate our terms of service, such as Spam or pornography. This policy was established at the time of creation of the forums because SDN is a resource for sharing information. Deleting posts deletes information which can be beneficial for other members.
Please note, during registration all members agree to the following forums policy:
Once you’ve posted on the site, it’s there forever. We do not delete posts except in extreme cases. Even if we can remove a post that you regret posting, they are often permanently cataloged in sites like Google or the Internet Archive.
However, deleting posts (and threads) is a Gold Donor privilege. You can review donor privileges and become a donor here. While this will allow you to remove the post in question, it will not resolve the issue of cached versions of your post.