Mine is that the useState hook is an actual plague on the entire React ecosystem. Regardless of your opinions of React, if you wanna use something then use it right.
If I was king of the world, I would rule that all AI models were based on stealing from all the knowledge of humanity. Since it cannot be un-stolen, I would decree that all copyright is unenforceable and all current proprietary data must be public domain forever as restitution for the abuse.