> Two significant studies, the Pew Research Center study conducted in 2018 and the Computers in Human Behavior study published in 2020, have shed light on the prevalence and impact of corporate trolls on Reddit.
So I went looking for 2020 publications in the journal, and found 8 articles containing the word "reddit" [1], none of which were about corporate astroturfing.
[1]: https://www.sciencedirect.com/search?qs=reddit&pub=Computers...
Edit: When I include 2021, I get more articles from 2020, but still nothing related to corporate trolling on reddit or even just astroturfing on reddit in general.
Edit 2: The Pew study, on the other hand, is linked [3], but it's from 2017 and (from what I've skimmed) it doesn't talk about corporate trolling/disinfo other than to say that it happens and linking to news articles which are merely reporting on fake news and thus do not substantiate any percentage claims.
[3]: https://www.pewresearch.org/internet/2017/03/29/the-future-o...
Edit 3: I checked the reddit links cited as sources and none of them seem to support any percentage claims, either, just that disinformation campaigns exist and that trolling exists.
I have to wonder if the author is making stuff up as part of some broader agenda or is just trolling, because if this is just a troll, well played.