Morale system.

No, why change the balance... to prevent this from happening, you just need to limit users. That is, someone who has, say, 10 posts and a positive morale, can influence the morale of others...

You simply don't receive negative ratings just because your opponent disagrees with you! What do useless posts have to do with it? For example, I disagree with your post and provide an argument against it... There are people on the portal (who have more than 10 posts and a positive reputation) who also give their opponent a negative rating... simply because they disagree with what he says...

You can argue with me, but I'll give you another negative rating and again write that you are wrong! What will you do in this case? Will you agree that you are posting useless content? I doubt you will... But you've already received a -20 reputation points. It's absurd.

This is just the beginning. The nonsense will only get worse.
Sooner or later, measures will have to be taken. But why wait?

As always, IMHO.

Added after 8 minutes

To prevent people from posting useless content, to severely punish them. :D But 10 to 1 is already too much, IMHO...

Exactly! USELESS! This is the key word.
Should I show you messages that you are unlikely to consider useless and for which they give a negative rating? There are many such messages... We don't give negative ratings for useless messages; often, we simply use negative ratings to express our personal attitude towards the person we are talking to...

For total spam, for obscene language, for obvious aggression, you can give a negative rating as a punishment. But what does uselessness have to do with it? Let's think...