Okay, the question is, if I wrote an article in the wrong place and want to delete it, but they tell me that it is impossible to delete. What to do?
This was also a problem I was facing in the forum. Most time I would create a thread on a particular Board and next thing I would see from others comments, 'lock this thread, delete it or move it. And I did know what to do. There are some times Moderators would moved or locked the threads for me. Till recently, I learned to move and Lock thread. As other commentators have instructed you just follow the steps and do it.
Look at the following illustration and follow the image at the bottom
Look at the left bottom of the post or the screen of the device which the post has been made. Or if that is not working perfectly for you. Ask the Moderator in the particular Board to do the needful for you.