Honorable person, nice choice of words.

Actually, you just have to be active in the forum and make some good post so you will earn more merits that would help you rank up.
ranking up from Newbie to jr, member, member or full member is quite easy, the challenge is the rank up to Sr. Member, hero and legendary, however you won't feel it's hard if you are enjoying your life in the forum, instead, once you are ranked up, you might miss yourself when you are still in low rank.