I have a vray scene which i want to add a krakatoa pass for. It tries to render the v-ray lights even if they are hidden, is that correct?
Yes, 3ds Max itself has never skips hidden lights, they always render. In Maya, hiding a light turns it off, so we implemented it that way there.
VRay has the OPTION to render with them or not.
I guess we could add an option to KMX to do the same, otherwise we would irritate people like me who hide lights and expect them to illuminate the scene 
EDIT: It was already logged as a wish, I added your vote to it…