It seems like the use (or overuse) of Chloe is regional. I have never met a single Chloe in real life (born '91) - none of my classmates had the name, none had sisters with the name... This is why it has never seemed "tired" to me, personally.
I will say, though, that my step-siblings grew up in the county west of me, where the suburbs start to sprawl a little more and... well, I'll just come out and say it: the population is significantly whiter. And there were five Chloes in my stepsister's class in the yearbook. (This same thing happened with Courtney: never personally went to school with a single one, but in the next county over there were Courtneys galore.)
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