That pisses me off, too, but I suspect that advertising companies are actually the ones to blame: from the prevalence of this, I'm guessing that the middle-person companies that arrange for ads in things like to insist on it. (Probably because it's the demographic datapoint they can most often get away with demanding of people.)
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regna
(no subject)
Date: 2013-01-03 04:29 pm (UTC)