Wouldn't this just be a content rating with neutral score?
My community is also very 'affirmative' and likes to make things positive, so they're also hesistant about marking anything as negative. With that said, I think the current settings to allow "neutral rating" already accomplishes what you want.
Like, Dislike, Agree, Informative, Creative, Funny, Drama Queen, and then some that are unique to my community's content.
If you're a photography forum (I'm guessing, since you're asking for fa-camera icon), you can maybe create some fun ratings that are unique to your community such as "Panoramawow " (for great panoramic photos) or "Marcellous Macro" (for close-up macro photos) or "In the Moment" (for action photos). Etc etc.