Option for showing sigs only once per thread.

[GamerJunk.net]

Would it be possible where someone could only have the option to post their sig once per thread? Such as they don't have the option to post it again whenever they reply.

Or make it so you only view each persons sig once per thread instead it showing up with every post?

[Gizmo]

Per thread? You're aware that a hack already exists to show a sig per page?