When a member of your faction takes the scroll and moves to the enemy in attempt to die and trade it ?
Or when rambling around in his small ballgroup just to farm kills while holding scroll in the same time ?
Scroll trolling to farm AP has been done since the game launched. Some come up with great places to go with the scroll and for some reason, people just keep feeding them their AP thinking they are going to save the scroll.
As for what might be called trading it, nothing can really be done about that. There was a situation as launch that was a real issue, being able to help an enemy player get behind closed gates to get the scroll, but that was quickly fixed. There is not a reasonable means to fix what OP is talking about.
Edit: I would suggest an edit to the OP. As it stands now no one would even think this thread has to do with alliance scrolls. It is a very different type of trolling that would come to mind when looking at the title.
I am curious di they get much AP farming with scroll? Most of the time they are ignored until scroll reset.
I always thought most efficient way to farm AP is zerging since most of emperor is zerg member.