The most effective way for the actual conspirators to squash the truth would be for them to shower so many bunko conspiracy theories around it that it was effectively buried. With a noise-to-signal ratio high enough, a post that made sense would be effectively buried.
A good example is this post and this thread.
This is a great point. The ignorance displayed in this thread is astounding, really. Even those who are likely to agree with the premise of my post are rabidly spewing noise that drowns the message. Digging for conspiracy theories to make this seem bigger than it is can only serve to make it seem like it's not a big deal when those conspiracies are debunked.