I have been blogging for 15+ years.

The nice thing about blogs is they are timestamped. So if you publish something that is wrong, you can say "that was then, this is now, and for reason x, y and z I have changed my mind. (Either in person or at the top of the post).

The other unfortunate reality is that most blogs aren't read widely, so chances are no one will read your mistake.

You've just described me perfectly. I also just haven't made the final push even though I have everything set up. But in my case, I fear that people will take it as a "show off" and not as a way of sharing about things I learn.