Definitely! Yesterday I ripped "The Best of Emerson, Lake & Palmer" (Victory, 383 480 036-2, 1994). RipNAS Essentials chose a source that had the metadata from a 1980 Altlantic import with the wrong cover art and the Artist for all songs entered as "Emerson, Lake\\Palmer" (i.e., two tags -- not exactly wrong but certainly unexpected). The song titles were all correct and in the right order, but the composers were all messed up (e.g., Aaron Copland [sic] for "From the Beginning" and "Tarkus" and "Keith Emerson\\Greg Lake" for "Hoedown" -- ridiculous). Having the ability to vote should allow one to resolve such issues with identically named discs. (Interestingly, even WMP11 gets all the metadata for this disk right.)
While this feature might be handy, I don't think there's any need for Spoon to re-invent the wheel. Mp3tag is an extremely powerful and well-designed metadata editor (and it's shareware!).