What does "Rather it is a semi-fictional identity from which underlying assumptions about facts and narratives can be discovered." mean?

-----For context-----
Many have turned to meme culture and radical politics as a way to fight back or cope. On Instagram, these young people come together and share their knowledge from going down various rabbit holes to “the truth”. Among them, there are spiritualists and Traditionalists. Others are green anarchists, who long for simpler living. Some dissociate completely, into post-human utopias. These meme magicians and guerilla artists comprise a scene popularly described as “Schizo-posting”. They share a commitment to waking up the normies to the evils encroaching their world and to ascend to do battle with them. The world we inhabit is fallen or corrupt, and they believe we can usher in a new age. (...)
Schizo-posters should not be seen as individuals who authentically believe all exaggerations in their memes. Rather it is a semi-fictional identity from which underlying assumptions about facts and narratives can be discovered.

For more context: https://donotresearch.net/posts/millenarian-dreams-of-the-schizo-scene

Question

What does "Rather it is a semi-fictional identity from which underlying assumptions about facts and narratives can be discovered." mean?

-----For context-----
Many have turned to meme culture and radical politics as a way to fight back or cope. On Instagram, these young people come together and share their knowledge from going down various rabbit holes to “the truth”. Among them, there are spiritualists and Traditionalists. Others are green anarchists, who long for simpler living. Some dissociate completely, into post-human utopias. These meme magicians and guerilla artists comprise a scene popularly described as “Schizo-posting”. They share a commitment to waking up the normies to the evils encroaching their world and to ascend to do battle with them. The world we inhabit is fallen or corrupt, and they believe we can usher in a new age. (...)
Schizo-posters should not be seen as individuals who authentically believe all exaggerations in their memes. Rather it is a semi-fictional identity from which underlying assumptions about facts and narratives can be discovered.


For more context: https://donotresearch.net/posts/millenarian-dreams-of-the-schizo-scene

Foogod · Accepted Answer

Wow.. this is very complicated reading.

"a semi-fictional identity" means that the persona that they present online is partly real and partly made-up.

"from which underlying assumptions about facts and narratives can be discovered" means that by looking at the identity they have created it is possible to discover what the person believes (assumes) to be true about the world.