> And if whitelisting becomes a thing [...] Not a big deal
But that's the whole (big) deal. The solution is usually the trivial and easy part - getting people to change is the hard part.
Humanity is littered with millions of problems that could be solved if it wasn't for inertia. A solution cannot simply be better or more convenient - it has to be so overwhelmingly better, so much more convenient for people to even consider switching.
And while this solution is better, I don't see your average person caring enough to take the time to make sure they've whitelisted all services they use.
Re:Let’s Destroy Robocalls
by atombender on Monday March 04, 2019 @04:12PM
(#19305568)
The mental overhead of having to keep track of what to whitelist means it's not something 99% of people are going to do. So while it might work for you, it's not a solution. I'm certainly not going to do it.
And if whitelisting becomes a thing you know the UI is going to say "your order is complete! Please click here to whitelist our number in case we need to reach you."
Not a big deal, and it basically solves phone spam.