Stuff like people being eaten by someone dumb or low on the social totem pole is super hot, but I always feel pretty bad when I think about it afterwards because it's really judgmental and even dehumanizing (no points for bringing up the irony of that in a vore thread). Supernova has a couple stories I love where the pred is an unwashed, useless fujo NEET; in one of them, the prey is a girl on her way to her thesis defense to get her PhD who gets shrunken by someone else and eaten unaware, and in the other the prey is a well-liked, kind and friendly girl with a bright future who gets shrunken by the pred because she's wearing a cosplay she likes. But something feels pretty mean about seeing people who exist in real life and aren't hurting anyone as so pathetic that it's uniquely degrading to be dominated by them. They're just living their lives, man. Who am I to judge?
But goddamn if it isn't hot.