[5555624]

> The thing is the Uber/Lyft model identifies both people.

In theory. I can't speak about Uber; but, with Lyft, I've seen husbands driving instead of their wife (and vice versa). According to some drivers, this is not uncommon. I had one driver who's name, according to the app, was "Google."

I've also had a number of drivers tell me that many riders don't have their picture on their account.

[LorenPechtel]

Yes, but the named person on the account will almost certainly know the identity of the person actually doing it. It's not anonymous.