why would we ignore the msm? stories supporting our agenda here are the most interesting ones by far. they give reason to review our (perceived) agenda in light of the msm support. many times the msm is just reporting what they see in these cases (by accident perhaps). in other cases there might be reason to doubt some specific piece of our agenda or to investigate the context further.
btw…it is indeed true that doubt of certain core propositions will be met with scorn. this is not irrational. read Kuhn's The Structure of Scientific Revolution if you want to know why. there are strong parallels.