Quite honestly, I don't think the guy's is even worth seriously discussing about beyond his actions. The reasons surrounding the plebs who voted him are a more interesting subject.
You should actually read the article, considering that it's about how said plebs were manipulated into voting for him by the extreme right-wing billionaire who helped fund the Trump campaign.
Ah, I assumed based on the URL that it was just about the nonsense Trump pulled on Friday calling every major news outlet being fake. So thanks for the heads-up.
From what I can tell, while the idea of utilizing military-grade tech to drive propaganda is no joke, I think the article somewhat over-exaggerates their findings. However, it is understandable considering what essentially occurred was the utter abuse of search analytics with online journalism taking collateral damage if not the brunt of being a target. Far from a true mark of brilliance (though the automated share trader is intriguing).
Basically, its "success" boils down to a couple of conditions which aren't really new issues: the fact that all that info could be gathered so easily, and how readily plebs (I always use this
meaning, not as a derogatory term) are to devour any words that feed their own individual inclinations, factual or otherwise.
On the latter, I can't really say much as I don't know enough about the people on the lower-end of the social/cultural class in the US.
What I did observe at some point though (being the lurker I am) is that often the comment sections of news sites had really shitty posts on them, mainly from seemingly middle-aged adults (it's not nearly as bad as incessant kids on gaming boards though). When obviously false/inaccurate/incorrect statements are replied to by someone with a rebuttal the original poster seemingly (as in, almost predictably) goes into a frenzy or some sort. This kind of people couldn't care less what reality actually dictates, and I'd be surprised if someone with the same alignment as them (which can be either of the two in the US) even needed to go so far as to actually "brainwash" them as the article puts it. On the other hand, those who can't decide for themselves what alignment they should take and believe every conflicting detail they see are no better.
Same pattern should still be around in any political subreddits last I checked (during the last campaign), perhaps even on FB/Twitter as per the crap Burk's been dealing with.
I'd go as far as to say this can be entirely FB's fault. Web crawlers would basically be doing what they're supposed to do, even in the event that lookups began concentrating toward falsified information, and at least Google has sorta retaliated to the phenomenon (albeit late) as described in this article
In the case of FB though, first thing that it had going was making any and all details users put on the site ready to be captured for analyzing. This was way back when and never really changed fundamentally. And then at some point the founder decided to take the SJW stance by replacing all the news curators with a shady-as-hell algorithm that guarantees that any news fed to users are closely if not entirely suited to they're dispositions and preferences. In the case of the elections, there's no way they'd see political views opposing theirs until others go out of there way to argue with them.