Earlier quoted context omitted.
That charge makes no sense. By that logic, were Mark Zuckerberg and Jack Dorsey also tools of the Russian government?
I would argue that Wikileaks should be held more accountable for what it publishes under its own name than Zuckerberg for anything posted on Facebook. That said, I have no problem saying Facebook was a tool of Russian propaganda.
Accountable for what? In what way?