I would suggest that during an active tour, the TOURS section be divided into two sections. "Tours - SPOILERS - Enter at your own risk" and "Tours - Everything Else".
Once the trucks start rolling almost everyone's comments about the concerts will fall into the spoiler section, and the questions about what time to line up for GA and where to park can go into the everything else section.
This could help with the complaining about people failing to post 'spoiler' when they add a new topic.
its not that we are complaining we just are trying to help the others from knowing
and like the idea