"I'm a Nay Saying worm beast!"
If they are like blogrolls, then they could be really fun. But are they going to be created by users, or by the system?
They're the dice rolls associated with the thread. Here's a die roll:
Why yes, I do have a +1 sword. 1d20+1 = (6) + 1 = 7
Die rolls were introduced over at RPGGeek, for play-by-forum and such.