Sometimes you have to deal with people you don't like, hate or whatever. They may be nasty, they may be crooks but to have some dialogue deals are done. I did this many time during Union discussions with management. Craig has told us something we did not know before, there may be more to come depending on Easdales's behaviour.
As far as your comment about Craig bringing out a book, are you saying that a Rangers fan is not allowed to do this? A good few others have or is it only Craig you have a problem with?
As far as his motives are concerned it seems a hell of a lot of trouble to take, including insults, critisism etc. over the last few years, for what ? To write a book? Btw I do not know Craig Houston.