You don't need reputation systems: I can count on two hands the number of organizations that have any reason to be contacting me unsolicited.
Add a minor tie-in with my bank, and my reputation list would essentially be "the government, my bank, my doctor, my insurer + any company I've done monetary transactions with recently".
And realistically in a world with this system, this is all already implemented by my phone's contact list - no more phone numbers would mean that there's no reason to think that any organization would be contacting me from a totally unique (or anonymous) identity. Instead I'd just have a contact book whitelist entry for "bank.com.au" or whatever scheme we ended up with.
As it is right now, actual government services call people from Caller ID blocked numbers, and don't widely publish allowable contact origins. Which is ridiculous.
Add a minor tie-in with my bank, and my reputation list would essentially be "the government, my bank, my doctor, my insurer + any company I've done monetary transactions with recently".
And realistically in a world with this system, this is all already implemented by my phone's contact list - no more phone numbers would mean that there's no reason to think that any organization would be contacting me from a totally unique (or anonymous) identity. Instead I'd just have a contact book whitelist entry for "bank.com.au" or whatever scheme we ended up with.
As it is right now, actual government services call people from Caller ID blocked numbers, and don't widely publish allowable contact origins. Which is ridiculous.