Crack down on non constructive comments

I read that topic, and it was more directed at ‘stop the hate’ and ‘don’t angrily say the game crashes and is bad without saying why’. While I agree with these points, I can see why the topic spirals out of control.

I’m specifically talking about comments in a constructive topic that add exactly nothing to the subject.
Saying ‘go buy a real plane’ in a wishlist topic doesn’t add any value, and should not be there.

There is actually a good example in this thread:
TheLittlePilot1’s post is on topic, yet is flagged. (Although the friendlyness of the second part is questionable)
On the other hand Lochboisdale adds exactly nothing to this topic and should not be here.