Ok, everyone comes in at the level of junior member.
Then, about onc a week or more often, a moderator (forgot which one) goes through the newbies and promotes those who have contributed to the org.
There is NO post count you have to reach, there is NO length of post required, there is NO length of time you have to be here.
Each persons posts are looked at on an individual bais, and them promotions are given out on the value of those posts. People have been promoted after 1 good post, and people have NOT been promoted after 100 posts.
Promotion from senior patron to member follows the exact same rules, it is completely the moderators discretion. I myself got to be a member after being here about a week and a half, other have not become a member after months, again it's NOT number of posts, it's not size of post, it's QUALITY of posts that people are promoted on.
If your a senior patron and really desperately want to be a member I suggest you head over to the mead hall, read a few stories and write your own, posts over there are very well written. ALL of the forums are closely watched by moderators, so you don't have to go jumping up and down saying 'pick me pick me' to get promoted, you just have to earn it in quality of posts.
Personally I think this is a brilliant way of doing it. So many other forums do it on post count, and that just promotes and rewards spammers.