On Thursday evening, after a full day of chaos on the timeline, Elon Musk’s Twitter halted new enrollment into its $8-a-month Blue subscription offering. Offering anyone the chance to slap a “verified” badge on their account had led to widespread impersonation of government officials, corporations, and celebrities. The resulting mayhem, which led to memorable hoaxes from accounts misrepresenting themselves as Eli Lilly, Tesla, Lockheed Martin and others, had triggered an advertiser…