That’s the easiest reason not to publish: it might be wrong.
But wrong how, and wrong for whom? If the people you weren’t trying to talk to didn’t like it, is it actually wrong?
And, if you wait until you’re absolutely, positively, beyond-a-shred-of doubt sure before you publish, how will you feel when someone says you’re wrong then?
Nobody’s right all the time. The people we trust are the ones who publish a lot, accept when they’re wrong, and try to be right just a little more often. Or, at the very least, to learn along the way.
This is easier in real life, where we can’t help it. If you want people to see you in all your complexity on the semi-anonymous, dimension-distored internet, start publishing enough that they can see how nuanced you really are.