RPGMemes

Trust issues is right. I wouldn't want to play with a DM who does that. This is not just fictional cruelty, to take a player out of the final battle just to rub in how evil and clever the villain is just feels unsportsmanlike to me.

But I see there is a whole genre of posts that's all about suggesting awful things for D&D games because it makes for spicy social media content. Same goes for, say, the False Hydra, a monster that does not fit with the games mechanics and imposes a metagame threat that bypasses the characters abilities and resistances entirely. I hope it's all just memes at the end of the day.