[Leif24]

It works if you only allow incoming calls from your contacts (e.g. whitelisted numbers) on friends/family/work line. If that number leaks, who cares? The random numbers will be blocked anyway. Probably would want to set it up so the 'public' line is silenced - just periodically check the VM box for anything important.

[pixl97]

It seems possible, but maybe not affordable, for scammers to buy information about you and then spoof numbers of places that could/should theoretically call you. If you couple this with the potential victims on the other end being elderly you've greatly increased the risks of the attack being successful.

[xethos]

But then you're right back where you started: When you need a clean number for a hospital or similarly important service to call (Wife's work, daycare, school office), it goes to the distrusted, silent-by-default line, or, just as bad, it doesn't ring the clean, only-whitelsisted-numbers-ring line