People who’ve never finished a project are always the quickest to review yours.

Commentary is cheap in a way that making is not, and people who have never carried something to the end tend to hold the firmest opinions about how it should have gone. They are not being cruel. They simply have not met the hundred compromises any finished thing is made of, so the gap between the ideal and your version looks like carelessness from where they stand.

Weigh feedback by what the person has built. Listen closely to anyone who has finished something themselves, and let the rest pass without needing to argue with it.