I think you're making an interesting point that warrants a little further exploration: "disinformation" is nothing more than you using information available to you to determine what you think is true that the people who disagree with you would not like you to consider in your assessment. What the whole "control disinformation" argument boils down to, in my opinion, is an attempt to stifle people's own faculty of reason and deliberation by restricting their access to information. Who is to decide what information is relevant to you? Why is it that some people want to do that because you did not come to the conclusion they think you ought to?