Me reading this:
It sure is lovely that the "AI" "Revolution" has given hacks a bunch of hard to audit but scientific-sounding metrics for them to apply however they want.
Armchair peer review time: I'd love to see them introducing a control group for their "toxicity" model by including subs from their other identified clusters. How can you know what it means for tankies to be millions of billions toxic if you don't have baselines? I do like how they agree with r/liberal and r/conservative being in the same cluster though. On the domain analysis I'd require them to also include the total number of articles and not just the percentages, which I'd bet would give a fun graph.
Overall, I've read less funny and more informative parody papers. For the AI nerds, this one might be fun.