According to a pay-walled article in The Information:
Thanks to a secret software-based effort within Uber called "Hell," Uber could track how many Lyft drivers were available for new rides and where they were[.] [...] "Hell" showed Uber employees which of the tracked drivers were driving for both Lyft and Uber, helping Uber figure out how to lure those drivers away from its rival.
additional coverage:
(Score: 0) by Anonymous Coward on Friday April 14 2017, @02:59PM
No, but it does help to occasionally become a new customer all over again, again and again, especially with ISPs.
I don't like negotiating that way, but it's the only way to negotiate with a brick wall.