'Cross-posted' to various email and forum posts:
Edit: The thread has been moved to the 'no search engines' forum.
Our policy, like that of most reputable websites, is that the person who made the post can edit the post or request that it be edited. For us, this means that you need to log into the account that created the post and make the request from there (following this procedure).
If you can't show that you're the original poster, for the sake of security, we don't make edits. We also don't delete the first post of a thread with responses because doing so removes the entire thread.
I did create the 'no search engines' forum some time ago to help in situations like this--the post remains intact, but hidden from the public and from search engines.
Finally, the post doesn't appear to have identifying information; it doesn't say which universities you (or the actual poster) attended, your name, your home country, where you live, etc. I really don't see the privacy issues for the poster.
I am sympathetic to privacy issues when they exist, but frankly, you could be anybody, and in one of the posts, the poster said that she or he knew the posts were permanent.