because the newbie is very new in this forum will be considered doesn't know anything about bitcoins and another digital coins
Do not judge people from their look/cover, being a newbie doesn't mean they do not know anything, they would know more than you or other high ranked member. They could be pretending to newbies, but actually they are Legendaries.
Thats true on some level, I for one have been on this forum for over a year but just recently registered(have been a silent follower). But the truth is that "most" newbies applying for signature campaigns are actually very "new" and don't really know much about the forum rules, thats why most campaigns don't accept newbies.