In fact, the urban dictionary attempts to define it as someone making a statement without having all the facts. It is like, someone does not know what they are talking about, yet they make the statement anyway. That's pretty amazing when you think about it, but in many ways that is how our public discourse occurs these days.
Gone are the days when people actually sat down and talked with one another, listening to what the other person had to say. People are too quick to state what they think, then they ask someone for their views. When you do that, you're really saying, "my beliefs are more important than your beliefs, but if you must, I'll listen to you talk about them.".
If you really listen to how the phrase "just sayin" is being used, you'll see the attitude that surrounds it. For the most part, it is condescending and disrespectful. It is a judgmental statement at the root. Of course, I do realize that everyone has an opinion that they feel the world must hear. The news agencies promote this agenda by showing random people giving their opinion. They further promote this agenda by allowing people comment on news articles.
