I think having an "ACP-option" or the ability to "rate" the first post of a thread with "Stars" would be really great.
Have the ability to enable "Star Ratings" for certain Forums.
So for example the "first post of a thread" could be a description of a hotel or restaurant, some photos, etc. and the users could "rate" the first post with "Stars".
This would make it easy to create some sort of "Rating Portal".