OK got an interesting one. I had a mod tell me when see moves a thread, or tries to move a thread, the only option she gets is copy thread.
Here is a pic to show you what I mean.
Example.
I have a Forum called The Spot, she clicks on the spot and the first 20 or so threads pop up to view.
Each thread has a box at the end to tick or untick. If you tick a thread, you can drop to the bottom of the screen and use the moderation drop down box and choose move thread.
When the next screen comes up it looks like this;
Any ideas as to why there is not a move thread there?