The main benefit of casting is not building an audience (though that can be useful, too).

It's error correction.

By exposing your work and your thoughts to the public, you are getting them criticized, and any lurking mistakes are corrected more quickly.

Co-Founder at sablier.com, and open-source developer. I have a broad range of interests, including longevity, epistemology, physics, and psychology.

Depends who is following you and responding. Your thoughts may get reinforced by an echo chamber of like minded actors and common logic may amplify an error.