I enjoyed one of Freddie Deboer's recent posts: Some Friendly Advice on Reviewing Books (or Anything Else Really)

In particular, I liked one of his footnotes:

For the record, the “well who are you to judge” response to artistic criticism is stupid and fundamentally misunderstands the purpose of reviews. The critical impulse doesn’t stem from an assumption that the critic could do better. The critical impulse stems from the belief that the artist could have done better, that a superior work of art lay within their grasp, and they didn’t produce it. It’s entirely immaterial if the critic could do better than the artist. All that it takes to think critically is to imagine a better work of art than what we got.

As someone who often has insecurities about my own reviews for exactly this reason, I'm going to save here this quote for future reference.