Yeah. For me the really notable factor is the weirdness of the disconnect. Like if you look at the person's claims and study the flow of the conversation back and forth, it starts to become really obvious that they don't actually have factual belief in the things they are saying. But they still want to continue the conversation and invest a bunch of energy into it. Like, a lot, over a long period of time.
So... why? There aren't too many plausible explanations for those two things in combination, and then coming alongside "blue MAGA" and Democrats this and Biden that, it all of a sudden clicks into focus and it all makes sense. Now that I'm looking at it more, I'm pretty sold on shilling being the explanation.