People who leave a service when the terms change in a way that negatively impacts their privacy are clearly choosing based on privacy reasons though (mostly anyway, some might be leaving because their friends left).
> Specifically, users had 30 days after first seeing the 2016 privacy policy notice to opt out of “shar[ing] my WhatsApp account information with Facebook to improve my Facebook ads and product experiences.” The emphasis is ours; it meant that WhatsApp users were able to opt out of seeing visible changes to Facebook ads or Facebook friend recommendations, but could not opt out of the data collection and sharing itself.
Source: https://www.eff.org/deeplinks/2021/01/its-business-usual-wha...