I do accept the IAU’s explanation. It’s their definition, it’s none of my business, and I’m not accountable for using it myself. Even if the person correcting

I do accept the IAU’s explanation. It’s their definition, it’s none of my business, and I’m not accountable for using it myself. Even if the person correcting you isn’t acting like an overexcited 13-year-old jumping up to correct someone about it, you must agree that as a point of discussion — as a matter of good taste and manners — telling someone that Pluto isn’t a planet is just terribly boring by now, and if that is stated as a response to something the person was trying to say, there’s a risk that attention and energy is being diluted from the actual point? Of course it happens earnestly, but there are still all of the other times and ways that it happens.