Yeah, the sentences are not quite exactly the same, but it's like a "Mad Lib" where someone/something just inserted new clauses into the same sentence structure four times in a row.

My gut feeling is still that it's being crafted by GPT-2 or GPT-3.  Especially because of the timing of the early posts.  I seem to remember a number of Steem posts in the 2019/2020 time frame where people were experimenting with those tools.  If I recall correctly, some of the people involved in those conversations later joined the *Witness War* hostilities on the Hive side.

Maybe near the beginning a human was proof-reading and fixing the worst parts, but as time went on and they continued to go unnoticed, perhaps they didn't need to bother with edits any more?

[This](http://gltr.io/dist/index.html) might be useful, but I'm not sure how to interpret it yet.  Found it linked [from here](https://futurism.com/detects-text-written-bot) and tried it out with a couple paragraphs from the top post on that same account.   To my eye, the sample below looks similar in coloring to "<i>machine*: unicorn text (GPT2 large)</i>."  Also, I note that there's no purple at all.


![image.png](https://cdn.steemitimages.com/DQmU5qPEVWwFZo2Eg4giaHyT9WEp9paoFtNypswr2Yq2jed/image.png)

Here are a couple paragraphs from my own post, so I know they were written by a human.

![image.png](https://cdn.steemitimages.com/DQmXcjj2pqhRGK26A5kpj1dDzcg8cjH4y2dBeMJYdb1aT6f/image.png)

I guess the more green and yellow you see in comparison to red and purple, the more likely it is that an AI wrote it.  That article was published in 2019, so maybe there's a better tool available by now.