This is an interesting problem. On the one hand, there are merits to a referee being anonymous to the submitter. Part of this may be to avoid reprisal for y

This is an interesting problem. On the one hand, there are merits to a referee being anonymous to the submitter. Part of this may be to avoid reprisal for younger referees, but even for more established referees, you may be freer to comment if you are anonymous to the author. BUT, you are not completely anonymous. Hopefully (though there have been some recent scandals related to this) an editor of the journal knows your work and has chosen to use you as a referee based on that. This can help to keep down some of the noise that another poster (lisper) mentioned. Also, the fact that the editor knows who you are may provide some constraint on how you may phrase a review as compared to if you were completely anonymous. I don't think this is something one should issue a lawsuit over--but I also don't think that their proposal of completely anonymous review is at all useful.