doubleKO said:
I understand you might wish to solve the problem without visiting the site in question, but the easiest way would probably be to contact the site admin through their contact page and request they remove the post.
I think I did go to the site to see if there were any contact options on the front page. It was a month ago, so I might be making that up. If I did go, there wasn't anything in front of the green door, so to speak.