I clicked the link but all that came up was a bunch of links under the heading "Resources".
What I am pointing out is the de facto position of these rules, law and regulations.
Don't tell me that I "don't understand it", I am just being realistic.
Your fans broke the law, the club failed to enforce it, you have been fined. Back your players, weed out the idiots. You have been in great form over the past few games, and lets face it as a club you need to unite in order to ensure you stay in SL over the coming seasons (I think everyone knows you are real contenders to miss out next time).
I haven't had time to study the facts or the laws, but I am telling you, clubs might try to restrict people saying it, but you will never see a club fined to the extent Castelford were for chants about hair colour.
A good example of the de facto position of these rules is that today in Wrexham, whilst Ganson was warming up the crowd game him a few jovial rounds of "you fat bstd". What did Ganson do? Laughed, and ran along patting his belly in response to the crowd!