When a thread has a good topic, people will comment on it. But not all those comments are supportive. I think adding the addition of being able to like a thread will increase someones interest to read the thread. And when someone has a good comment, people should like it so that everyone can see it too. This was just a small idea, but it might get some likes. I'm aiming toward getting likes for threads. And when a thread that has alot of likes doesn't have a comment in a while, it can just go in the graveyard. The order of the threads will still be whoever posted something the latest, even if that thread has no likes.
LIKE THIS THREAD!!!!!!!!!!!!!!!!!!! :)
You forget, this is Drupal.