I'm guessing this us why stations use the word "Buffalo" when they promote smart speaker use on the air, "Tell your smart speaker to play play Star 1-0-2-5 Buffalo"The only thing I'd say about call letters is that they may be more important than ever when trying to find your favorite station on your smart speakers. When you're trying to enable a station app, nothing is more fool-proof than the actual call letters. If a user just says "Star 102.5" they may get a station with a similar format that's a long ways from Buffalo. Call letters don't have that problem.