Are you sure of that? AFAIK, Fulco doesn't have a ban from PeL on his head for seceding Giask.
No, I'm not sure about it. But someone posted on the forums not too long ago, and had a link to their family page showing the ban they got for seceding. Never done it myself, so I don't know. Check the family history for the guy that seceded Aurvandil on Dwilight.
