pshuang, we've discussed this a number of times in the past, and whether we even need to do it this way.
As it is currently structured, a new 'poster' to F-T is a Jr. Member until they reach 30 posts. On the 31st, the Jr. disappears and the listing changes to Member.
One thing I will offer...you will have more credibility if you post an e-mail address in your profile. There are people that claim they want to maintain their anonymity here, and are concerned about spamming. I've had my e-mail address in since my first post (7/1/99), and it has not been a problem.