I don't see your point. Forums are to breed connections via conversations. The internet has all the answers, people like fresh discussions and interaction, hence why the forums are important regardless of whether everything's been answered before, or answered more accurately. Forums give character, like it or loath it.
Who cares?
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Most beginners in the forums ask questions that have an answer that most people don't know and so you have different answers given by about 20 different people. Also, even if they get the right answer, the answer won't help them improve. Let me give you an example:
In a beginner post someone asked are blitz time controls really harder to get higher ratings than lets say rapid time controls?
Another point, most beginners, ask questions, that can be answered, if they just buy a diamond membership from chess.com, go through the old study plans, among other things. Let me give you an example:
"In the Ruy Lopez, Why is a6 a good move?"
Though the forum base of good players can give you a good answer to your questions, you are missing a lot of underlying facts that you also have to know at your level, and thus, would be better off not bothering with the forums and just watching the videos and articles in the old study plans.
What I am saying is you can get a lot of nuggets in the forums, but usually, a full lesson plan is really needed, and the forums can't provide that.
Last but not least. Most of these beginner questions are aimed at the fact that the beginner can't figure out why they can't pass a certain rating. You are only beating around the bush to get free nuggets that I explained earlier are not complete, and RussBell posted his book links so much that all one needs to do to get good books for the beginner stages is to google RussBell. Yeah if you don't know to google russbell then you'd have a problem, but if you just google beginner chess books, you'd find a lot of options, and you'd also see RussBell's Blog links among other things.
Some people post, "Oh, I don't think chess is good for me, will you change my mind?"
They don't say it that way, usually, their post is a lot wordier, but it boils down to just that sentence.
Some beginners who post posts like this are just trolls and want you to waste time helping them when they aren't even going to read your comments.
Some people ask for study plans. When you want something free, you're not going to get grade A. more like, a grade D. Have you noticed that most masters stay away from these topics? The ones that do post are nice, but they only do it when they see people posting bad advice, and have to butt in. Want to know a good study plan? You don't have to ask a question in the forums.... I already gave the answer. Have you heard of a master violinist ever getting to that level without a teacher? Of course, it can be done, but that is beyond the reach of most people. Most people need input. Not everyone is a genius. Genius or not though, the speed at which you learn a new thing is accelerated a lot with coaching and paid material. You can only get so far with free information. The serious students to the game pay, or just play bullet all day and become gm strength somehow...
Beginners usually post on chess.com because they are lazy. I know this because the answer is usually a google search away. If it is not, then most likely you don't need to know the answer to that question as a beginner. The answer will come to you, as time studying chess goes on.
I posted on chess.com because I was lazy, or trying to find an alternate answer. I got good answers, but nowadays that information can be googled. It wasn't so when I was learning.
How does one improve at chess? There are many different ways to improve, and if you do enough of them, then, you will improve. If you don't, then you need a coach to diagnose the problem, not the forums.