Stu says "If you are going to belong to the club, you just have to accept it... that which is is why it is and will always be because it is."

Anyway, where exactly does it say any of this on the Club webpage? Many Club Members will not deal with you if you deal in slabbed items, but nowhere is it written in the Club's Constitution (unless I overlooked it).
No Club Member HAS to accept anything except the Club Code of Ethics, and Club By-Laws regarding reasonable conduct last time I checked....I guess that would make your statement a mis-statement at very best.
If you are going to sign the SLABFREE pledge then yes, you must agree to the provisions of said pledge. I don't think anyone is being forced to sign it however. (I've been a Club Member for quite a while and I still havent received any deaththreats for not signing )
Also, why do you still give a sh*t what Club members do? You made your opinion known by quitting, leave it at that.