I think it's a good idea to implement an enrollment process, like being referred by an existing member or something. I think requiring a post count is only influencing irrelevant posts. I had a different username prior to this one, which was my first and last name and changed because of anonymity. I have been a member for a long time but don't live on the board, so by the time I read a post the chance of me replying means that I will most likely repeat what someone else has already stated. I don't feel that post counts are relevant to anything. Also, I am a user to actually use the search feature and read an existing post as opposed to posting something that has already been posted and getting the all too common reply of people telling me to use the search feature.