You can now decide the height of the signature display area for all posts you look at.
So if you don't want to disable sigs but hate seeing the really big ones, this option will be your best friend. If someone makes a sig too large, it just gets chopped off at the max height you specified.
At the same time this might encourage some people to make smaller sigs if they intend for them to be seen properly.
Go in your general settings and select the option that suits you for "Max signature height", the sizes are in pixels. If you want to see sigs like normal, leave it to "Full".
I've got mine to 180 so less scrolling for me :awesome: