In my experience, speed of filtering ("is this thing I'm reading cool enough to continue reading?") and fear of being filtered ("is this thing I'm creating cool enough for other people to read?") are 100% orthogonal. They are simply not related even a tiny bit, which makes this post seem kind of hilariously inane.
For extroverts maybe? I could totally identify with that part of the post and the _why quote. Impostor syndrome is another example of better-tuned filters getting in the way.
