I think what he was getting at is that government agencies, journalists, and social media companies have an axe to grind against us, and they should always be assumed to be hostile unless proven otherwise.
Yes, I totally agree with you, and with your interpretation.
The statement if you can't verify it then it is conjecture is demonstrably false and I ask others to beware of that.
No one here on KF has ever done a detailed study on the moon and no one on here has been there - but to say that the moon is round and 300,000 KM away is conjecture is false. Simply because we have not done a detailed proof - and what every person on Earth is going to need to do their own study to verify the moon is round?
Shall we all decide that the Element chart, too is entirely conjecture because none of us have seen a Helium or uranium atom?
And as for motivations there are many who have motivations that include simply releasing their findings as with archeology studies etc. etc. etc. without a motivation other than to simply release the findings.
I'd suggest people chose their data sources more wisely and have some standard of trust associated with it. There has never been a story on CNN, MSNBC or Fox News that I have ever taken at face value, but there are some journalists out there that have looked deeply into things and have proof of their work, so I am inclined to go with their data over a broadcaster handed a piece of paper.
Always skeptical is healthy, but to entirely distrust everything every expert in every field says because you haven't verified it is the route of the damned.