I think that when mining you should have to be with in x amount of distance from a given light source. Attempting to mine in pitch black should return the message 'It's too dangerous to mine in the dark.'
I think this would be a good idea because light sources would once again have value. You even get a torch when you create your character...so Jorb must have intended for use to USE it, right?
Now I know everyone wants to play with full-bright and you still could! Clients let you see in total darkness but it doesn't make sense for your character to be able to see.
I also propose that darkness (night time darkness) lower your perception by 2 or 3 points unless near a light source or holding a lit torch.
I know this will be unpopular but tell me what you think, anyway.