Often times people think of "nerfs" as my first prompt (which was greenfield - no or little code existed) used 5% of my plan usage. And then 2 weeks later (as the agent is busy reading hundreds of .rs and .ts files it previously generated) the user complains the usage is going down 30% for a single prompt instead of 5%. Attributing this to a "NERF" makes little sense because it's the same model.