Rather than telling you exactly how to report, you can read this guide written by Welsh.
After reading this, you will understand more on how to report as well as understanding more about the forum.
Thanks
Maybe we shouldn't create a thread when users make a mistake? I know many users create messages on their phone by typing them in notes or something. I think this user did the same. If you grasp the meaning of the message, it becomes clear that he made a mistake in the thread and intended to reply to this one.
Take it easy on me, I did not know it was a mistake, I thought it was a spam. Some people may just like to go to 8th page of a thread to spam was what I thought.