Yeah, these can be cute, but they're not ideal. I think the user feedback mechanism could help naturally align this over time, but it would also be gameable. It's all interesting stuff
I bet if we put a better description into the embedding for 'ruler,' we'd avoid this. Something like "a straight strip or cylinder of plastic, wood, metal, or other rigid material, typically marked at regular intervals, to draw straight lines or measure distances." (stolen from a Google search). We might be able to ask a language model to look at the icon and give a good description we can put into the embedding.