It always makes me laugh when somebody says that if they can't PM or trade then there is no point in being here. That's the kind of attitude that makes me lean towards not missing the person one bit.
There are rules for a reason. You can disagree with them, but they aren't made without being thought through. If you don't know what goes on behind the scenes or what's happened in the past, it may be difficult for you to see the importance of some rules however.
With that said, there is much more to do on ck than trade. Your comments Didnt seem like just poking some fun. They showed a blatant disregard for the rules and just how unwilling you were to follow them. You are more than welcome to stick around and become a contributing member, but you will not be given back your permissions immediately. It will take some time.