The tall end of this entire article is the obtuse question of how much money is really in the game and how much is the service really worth in terms of providing real value?
How much do these disinformation campaign people get, who are they and how do they operate their systems? Let's imagine that they're paying small groups of guys to carry four phones and to search for a topic online on Reddit or Facebook and post n number of comments on the thread every time they get the opportunity to from each of the four phones, with another four accounts per phone, then using a script to monitor every account.
All that an adversary hacker would need is a hunter bot to detect the phones all by geolocation, microphone to see how many people are there, then block the phones. The reality is that even if you had multiple bots hacking someone's phones to do the job, the real value provided simply cannot outweigh the investment costs in the long run. Disinformation and propaganda as a weapon is more blurry in outcomes than simply building a bridge. Hell even sex work arguably works better for most than to spam their newsfeed
Builds great wall but with tunnel holes and gates for the lolz