In so far that a person's worldview is just comprised of what they decide to agree or disagree with, if they have done so sincerely then it is bound to consist of mish-mash of shit that just doesn't seem to really go together. People who appear to have coherent worldviews have probably based decisions off of an aesthetic and have failed to do the real critical analysis that comes with developing a worldview. Everything is fragmentary. You just loosely stich together selected fragments of ideas in order to present the semblance of coherence. Nothing is ever truly understood. The incoherent dribble that you see on online forums is probably spawned by a sincere attempt at deciding what is and what is not the case. Everyone else is subject to some form of false consciousness or another.