I am mindful about all the hoopla about the CIA not being the most reliable source, but, I have to be honest, I see it and I'm sure a lot of us see it everywhere, on any article that is critical of putin or Russia, floods of comments that extol Putin's strength or simply try to discredit the messenger. This is similar to their MO, confuse and make the public unsure of what is true or false.
This sounds conspiratorial, but I feel I've seen this sort of astroturfing first hand.