Sigs are here to stay, but as wdleehi said, users have the option of turning them off.
I personally like them. They're just another way of members showing their individuality.
On a related note, members who have non-conforming (i.e., too large) signatures should think about changing them. We usually begin stricter enforcement of these rules after the draft, but we'd appreciate it if people could save us some work by self-policing.