I've personally merited posts which I outright disagree with, and have even merited posts which are wrong. However, if there's a good argument or at least some effort was applied then it doesn't matter whether they get their facts a little skewed. Whoever you are you are not going to have all the answers, and especially when discussing technical aspects of Bitcoin. My merit rewarding system is all about effort, and quality rather than being factually correct.
Of course, if they're spewing total nonsense which makes little sense then that's not likely to get a merit, because its likely not constructive, and a quality post to begin with. An example would be discussion of the conspiracy theory that certain people on this earth are lizards. Even though I think that's batshit crazy if they bring some quality discussion, and reason to believe that then I'll likely reward them for that even though I'm totally against the suggestion as long as effort has been applied, and its of high quality regardless of the subject.