summary of whole topic.
some dude wants to become the come to service for address identification. basically the online addressbook.. while 99% of people know QR codes solves the non-problem this dude is trying to voice.
1. bitcoin principles - decentralisation. = WE DONT NEED to have a centralised addressbook, especially removing the decentralised nature of public keys
2. the addressbook is a reduction of anonymity
3. the addressbook needs to be flawlessly able to function for atleast 100 years without needing trust the addressbook service wont switch off, if it ever has a chance to be used as an optional feature
I thought the address book itself was also decentralized, since it uses the Namecoin blockchain and protocol to store entries:
OneName is a decentralized identity system (DIS) with a user directory made of entries in a decentralized key-value store (the Namecoin blockchain).
Nobody owns or controls OneName and users are in complete control of their data. OneName is open source, has a public design, and is for all to take part.
I probably won't be using this service because I'm quite comfortable with using addresses and QR codes, like most people here. But I still think it's a pretty nifty idea overall.