Twitter CEO Jack Dorsey might not spend six months a year in Africa, claims the real product development is under the hood, and gives an excuse for deleting Vine before it could become TikTok. Today he tweeted, via Twitter's investor relations account, a multi-pronged defense of his leadership and the company's progress.

The proclamations come as notorious activist investor Elliott Management prepares to pressure Twitter into a slew of reforms, potentially including replacing Dorsey with a new CEO, Bloomberg reported last week. Sources confirmed to TechCrunch that Elliott has taken a 4% to 5% stake in Twitter. Elliott has previously bullied eBay, AT&T, and other major corporations into making changes and triggered CEO departures.

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