From your topic, it's safe to say that what you call "highly professional knowledge" is about performing task to earn in here too? Like joining bounties(when they get to a desired rank), acquiring managerial skills and script writing etc?
So despite the fact that this forum is a great place to learn about Bitcoin and cryptocurrencies, there is a lot of knowledge outside of this forum as well, and those newbies who tend to have knowledge are newbies in this forum but aren't newbies in the industry.
Exactly what I think some people need to know, that you see a lot newbie accounts shouldn't make you think the newbie profile has something to do with the knowledge of the owner of the account. Right now a lot of people are well informed about cryptocurrency especially bitcoin but they are yet to find out about the forum where they can get more exposed in terms of having more information about bitcoin and other cryptocurrency so in all I think people should see newbies accounts as newcomers in the forum not in knowledge unless they declare that they have zero knowledge in cryptocurrency.