This is one of many examples of the dialog where this individual is speaking for others while ironically indicating he's running a "business". The fabrication and willful spread of disinformation is a powerfully disruptive behavior.
Truly they just get a thrill from getting a rise out of someone (and/or there's an economic motive, as is the case here), but they're able to post-rationalize it as a helpful service to their victims. They're pointing out areas of weakness; or they're playing 'devil's advocate'; or they're demonstrating the folly in engaging with an unreasonable person.
One of the things I find most frightening about people is that, generally, we all think we're the good guy.
Also the justification for nuclear proliferation. . .