There is a specific discomfort in publishing a thought before it is fully formed. The sentence is not quite right. The argument has a loose thread. Someone will notice. This is precisely why it is worth doing.
Writing privately is a kind of practice. Writing publicly is a kind of commitment — not to being correct, but to being legible to someone other than yourself.
The fear of being wrong in public is the most productive fear I know. It forces revision at a level that private writing rarely achieves.
The version of writing in public that I value is not the kind that performs certainty. It is the kind that thinks out loud — that says: here is where I am, and here is what I am uncertain about.
The draft you publish is not the final word. It is an invitation. People correct you, extend your argument, or disagree in ways that sharpen what you actually meant. None of that happens if you wait until the piece is perfect.