First off.. see you're new, so WELCOME!!
Difficult to stay how many still post, but since we just began having registration necessary to post recently, I'd hope most of them. You can see the actual # of posts per poster by clicking on Members
As to the number that are no longer allowed to... thankfully it's no more than a handful, and the majority of them are spammers. Most folks enjoy the atmosphere here and treat it with respect.