I understand people are going to be negative - it's natural. And I approve and encourage "constructive" negative comments - talking about how Bryce ain't so hot right now, that Gio can't find the strike zone, whatever. That's conversation - and I enjoy it.
What I REALLY hate people calling "game" at any point before the end of a game - or any other similar comments. It's just pointless, completely negative in most situations and not constructive in any way shape or form.
But misery loves company. I don't know how you can "stop" these people from just complaining and bringing each other down. I'll just do my part and cheer the Nats on. Keep it positive!