When you like an image (or dislike it), you don't always have interesting ideas, or even descriptions to say why you do so. But in the galleries, the ranking is linked to a comment, so at times you just say "great" because you don't always take the time to gather all the ideas and emotions the image brings into you, or even can't word them. This doesn't cause any problem when it is positive, but does when it is negative. What about if someone instead of saying "great" because he likes the image was saying "bad" because he dislikes it ? Putting an art piece on display and accepting comments / rankings is also accepting the risk of critics, not always constructive, not always argumented... but sometimes only felt by the viewer. Artists are very sensitive, that's part of the job... but does that mean only accepting non-argumented comments when they are positive ? Just wondering...