Just ask what the person's concern is, or what problem it is they're trying to solve. It's best to demonstrate the behavior you would like others to follow. A

Just ask what the person's concern is, or what problem it is they're trying to solve. It's best to demonstrate the behavior you would like others to follow. And if you have retrospectives or can talk to the lead, maybe raise the issue of these types of comments and how unproductive they are to see if new team guidance can get things on a better path. Perhaps bring in guidance about code reviews from a source people might give credence to such as google's review guidance.