Sounds more like LinkedIn.

AirBnB?

Definitely Uber

The OP's company isn't the leader, so Lyft would be the company to call out.

Aren't they?

> They are in an industry where the leader has a big natural advantage, and they are in that lead by a large margin.

Could be AWS.

It sounded like an app targeting end users, possibly a mobile app that sucks up all the data on the device. AWS is unlikely because I don't think anyone could get away with fooling a large segment of the developer population for an extended length of time. Even if they could, why would they? AWS is their golden goose, engaging in shady/unethical practices would mean no more golden eggs.