Uber is offering a reward for users to recruit drivers from Lyft. Uber is offering $250 in free rides for introducing a Lyft driver to Uber. The offer is laid out in a Twitter ad [screenshot below].
Uber recently raised $1.2 billion in funding with a $17 billion valuation, which is being used for aggressive marketing campaigns like this one. Lyft is growing rapidly and Uber is trying hard to control that.