Are star ratings actually helping us make decisions, or do they cause more damage than they're worth

Shakespeare isn't worrying about his 3.91 Goodreads score for King Lear, but a debut author probably would.

Are star ratings actually helping us make decisions, or do they cause more damage than they're worth
Shakespeare isn't worrying about his 3.91 Goodreads score for King Lear, but a debut author probably would.