Many newbies know bundles of knowledge and they are serving the forum very well and the users awarded them through their merits giving to them. It does not mean that a newbie who is talking about trading here doesn't know well maybe he has been doing it for some time but fortunately, he found this forum recently so how you can say to stop teaching others, there are many Alts accounts of users who also teaching and giving their valuable knowledge to us. There must be some newbies who did this type of posting and it is better if you quote their post for confirmation and also that person take lesson and motivation from that.
We are talking about those real newbies, which means newbie accounts of this forum and newbies on crypto investment/trading as well. We can know whether it is real newbies or not from the content of their posts and they way they deliver it. Since they just know about crypto, the best way is to focus in learning. Teaching others shouldn't be a priority, it is only done by experts or experienced ones. 
For the people who just joined this forum but they actually already invested or traded for a long time, it is okay to teach others. Those people who have much experience and knowledge, they always deserve to teach others. But this means they are not newbies on crypto, but they are newbie accounts in this forum. I rarely found this type of newbies, mostly most newbies in this forum are the real newbies. The real newbies I mean that those people who are really newcomers in crypto and they are newbie accounts in this forum, too.