The whisper founders threatened to default on the debt they raised from SVB, then used inside money to buy it at cents on the dollar. because debt is senior to equity, they then wiped out the equity raised and kicked sequoia, shasta, and lightspeed off the board. then raised PE to fund a series of purchases of apps such as kik, and a lot of android apps with churned users with always-on location permissions turned on. They then used that data to build a small ad network.