I'd bet this has already been suggested, but I can't check cuz computer being a dick, so in case it hasn't...! Just a neutral (or maybe negative) rating with the icon! For when optimistic, Informative, or Creative just doesn't work!
I mean, if they wanna implement it its ok. But I believe stuff like the Confused Rating (dont wanna hijack here) is a bit more urgent than a rating that is so similar in function to Dumb. Im super up for having more ratings, but I dont want there to be TOO many ratings that dont distinguish themselves from each other or are just unnecessary *cough cough* NACTS´s Dank rating *cough cough* Edit and PS: I like that emoji tho