Hi there .
I've a question : can I jump ranks? I mean can my rank go from "newbie" to" member " if I post 60+ posts in 2 weeks ?
Or let's say : can someone rank goes from newbie to member without having Jr rank?
no theres no way to rank up from newbie to member and skipped jr.member as you mentioned, theres a processes to be level you up rank by rank. so even you have already posted a hundreds of posts. as a newbie you remains newbie unless you have reach the activity for being jr.member and you rank up by it. every two weeks you will be added a 14 activity so it means a matter of time to be wait until you rank up again.