They are inevitably part of the people that roam the internet, we set no boundaries for that.
You will run into people that are like 'hai ned help kthx' but really now? People act like mirrors anyway, they've probably seen it elsewhere and copied that attitude.
Gradually, they will better themselves and that can only be done through experience and time. I recall me being an idiot too when I first entered the web, specifically on Newgrounds, allcaps and LoLoLoL TyPiNg LiKe DiS so yeah.
If they really are new to this game, they are allowed to ask questions, it is up to you to decide whether you answer it or not, be irritated by the question or not and so on. (How hard is it ignore a topic that says 'hai ned helpz?' think about that :/)