HN is funny. Most of the time we fight for anonymity, security and privacy yet here were are, demanding spoof-proof caller ID.
Since the growth of robodiallers and sales scams faked CLID has become almost the default. It got so bad that I simply no longer answer calls that aren't in my contacts. They've ruined the phone system.
As for anonymity, I'm imagine most who would approve of it for individuals would not think it sensible for a business. Why would I trust or give money to a business that wants to be anonymous and lie about themselves?
So yeah, I'd like unfakeable CLID and to get back to a working phone system.