Perhaps, it's not strictly against the letters of the guidelines - but I've always found these types of comments against the spirit of the guidelines. I'd largely say they go against the spirt of a few rules, especially: "Eschew flamebait. Avoid generic tangents. Omit internet tropes."
They're low effort, generic, populous comments that do little to contribute to the discussion.
Perhaps, it's not strictly against the letters of the guidelines - but I've always found these types of comments against the spirit of the guidelines. I'd largely say they go against the spirt of a few rules, especially: "Eschew flamebait. Avoid generic tangents. Omit internet tropes."
They're low effort, generic, populous comments that do little to contribute to the discussion.