[detourdog]

The problem starts with low opt-in rates. The assumption becomes the low response was due to the user not understanding how to opt-in.

[rockskon]

By that same logic the present state can be described as most users not knowing how to opt-out which is predatory.

Given the history of online advertising it can readily be inferred that ads do not provide enough value for almost any user to want to opt-in.

[bostik]

Or turn that around: the service was providing insufficient value for the user to bother looking at how to opt in for their notifications.