You can always log out and simply discuss the final boxscore later if you like. That works too if the final score is all that's important and the actual game isn't worth discussing in your opinion.
If you're expecting 15 posts which say, "yay, we're winning", you might be on the wrong media platform.
I'm continually amazed at posters here on a forum who have a problem with people discussing what they're watching and what they see.
If the posters here who are involved with grades approached games the way a few here want them to, only discuss the scoreline and act like there's nothing to analyze, then grades would basically be either "wooho, we won" or "damn, we lost, maybe next time". That would be cool.