Sometimes they delete the offending post(s), sometimes they just close the thread, appears to be no rhythm or reason to it. That thread was far less derailed than many that they have let continue, so either it was the content, or, as I suspect, it depends who complains and what they want.
i reported one post as being offensive. i thought that would be easier than jumping into the off-topic argument. but i definitely did not request the whole thread to be closed or anyone to be banned.
sorry, first and last time reporting