News for hackers. Stuff that matters.
Re:Uber Is Ripping Off Frequent Riders and Here’s How to Avo... by rogerbinns on Thursday March 29, 2018 @04:06PM (#16710582)
Net Promoter Score - https://en.wikipedia.org/wiki/Net_Promoter - is used to measure just this.

> Net Promoter or Net Promoter Score (NPS) is a management tool that can be used to gauge the loyalty of a firm's customer relationships

It asks one question:

> How likely is it that you would recommend our company/product/service to a friend or colleague?

The wikipedia article provides more details including criticism.

Re:Uber Is Ripping Off Frequent Riders and Here’s How to Avo... by ABCLAW on Thursday March 29, 2018 @05:14PM (#16711081)
NPS doesn't measure future goodwill (or present goodwill for that matter). Rationally it may have some correlation, but it isn't a silver bullet even when understood and used properly (which it often isn't).

Instead you often get people trying to game their local NPS scores; not quite the same problem, but similar.