A note to the fic-writers of the world.

How shall I put this.... Oh yes!

Don't try to write anybody who is canonically better educated than you are. Or, if it's absolutely unavoidable, and you must write about this person, take a moment and educate yourself about the subject at hand first, lest you embarrass yourself by having your main character inexplicably be wrong when they wouldn't in real life.

This isn't prompted by the same thing I'm thinking of, but give me some time to find my links again.