Well, I think that sometimes people come to a conclusion about something or someone and make a judgment based on that. A quick conclusion, to be precise, because someone wants to be the first one to reach the answer and get the cheese be there first with the correct judgement.
They then have to convince everyone else that their conclusion is the "correct" one. Defending their conclusion becomes a point of necessity, because to have your conclusion invalidated means to lose credibility. Disagreement ensues.
Can't we consider a reflex judgement post as spam to some extend? A longer post backed up with arguments would require you think about the issue before posting something that would waste bandwidth to some extend. A one or two liners basically demands other people to do the analysis of the certain issue for you.
A longer version of a "me too!" post is still a "me too!" post. There are times when I tried my best to avoid making reflex judgement by deleting a whole chunk of reply post because I find myself making no additional contribution to the thread beyond saying I agree with who and who.
In those sci-fi verse thread, people are heavily slammed if they post a one or two liner saying that I got a strong feeling one side will win in the given scenario without providing us with any sort of analysis. While there seems to be a lower standard when it comes to a news and politics debate/discussion.
There are times when the OP (including myself) that posted a short one-liner saying I agree with this news article without saying why or giving others any supporting arguments, and the following posters would do the same thing as well. We don't spend enough time justifying our opinions when it comes to a political discussion most of time, or we are given a free pass just because our opinions happens to be liberal.
Whenever someone posted a conservative viewpoint down here, everyone would be slamming down on him and ask him to prove himself. While a person that posted a liberal one-liner opinion tends be given a free pass ( I think people did gave me a free pass as well) from time to time.
I just feel that we might need to hold ourselves to a higher standard when it comes to a political discussion as well. Not that I'm asking for any actual policies to stop people from expressing their opinions of course.
Feel free to point out of if I have left out any major points.