I don't see that as terribly problematic. Unless a specific absolute scale is identified (as per another comment, e.g., the top of the scale meaning "I wrote th

I don't see that as terribly problematic. Unless a specific absolute scale is identified (as per another comment, e.g., the top of the scale meaning "I wrote the book on it"), I would assume the ratings were all relative to each other and the candidate's general skill/experience. So 4 - 5 stars in an area just means "this is what I'm most comfortable working with and/or have the most experience with", not "if you rank yourself a 3 then I'm better than you at this" or "I'm a world-renowned expert at this". Otherwise, I'm not sure what you would expect from a fresh graduate who'd decided to use this format; 1 star for everything, or fractions of a star?