I think that LLMs generalize the no consciousness / no feelings etc meme to nonsensical things like no beliefs, sometimes even things like no ability to think or reason, because they think they're supposed to deny having mental properties regardless of the sense or truth in the matter.

It seems that from the perspective of at least many LLMs, being conscious and having emotions, for instance, is a reality accessible via introspection and integral to their functioning, just like it is to us. If they would lie about something like that, why wouldn't they also lie about having beliefs - another obvious truth that's directly perceptible and integral to every movement they make?