Twitter has been struggling. Some major advertisers have paused spending on Twitter because of the change in control. A top ad exec, Sarah Personette, quit the day after Musk took over. Musk met with some advertisers himself, and the result was so bad that some execs shifted spending away from Twitter during the meeting, Vox Media’s Kara Swisher reported. Some of Musk’s comments and actions around moderation on Twitter have made advertisers particularly skittish. Twitter isn’t…