420 Comes Early: Cannabis Brands Roll Out First Paid Ads on Twitter

A few weeks ago, Elon Musk posted a three-character message that contained only the numbers 420, with no explanation. Many people interpreted it as yet another sign of Musk’s loud-and-proud canna-fandom. But weed industry executives saw it as a harbinger of a policy shift, speculating that Twitter would soon break ranks with other social channels…
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