You now can include random fair values in your comments and posts. In order for them to remain fair you cannot edit or delete a comment that has a dice roll in it. Users can see that a dice roll was performed because it will include the matrixdown command to make it happen.

I was originally only going to implement a D20 and assume that was good enough, but I decided to make it support any value. Integer values produce integer output from 1-value. Floating point values produce floating point output from 0-value.

!D20 = 1
!D4 = 4
!D20.0 = 7.930401670119247
!D6,6 = 6,2

The property that a dice roll means you can't edit a post may also be an interesting proof of locking yourself out of editing.