I'm pretty sure everyone has heard of that one person who's device was stolen, or their computer was hacked, stealing wallet addresses, private keys, and even security phrases. Well, that happened to me after someone broke into my hotel room and stole my work laptop.  Fortunately, before they could figure out how to withdraw the funds out of my wallets, I was able to extract the funds and send them to entirely new address, but the difficult part of this was remembering the addresses.  Storing the addresses seemed unlikely, since other secure information would also be stored in the same location.  All I really wanted to was keep an address book to help pay certain vendors and also make deposits into my own accounts.

I'm not sure why, but most wallets do not have an address feature.  Having a one stop shop for all your wallets just make the entire use case easier, and I believe it's that would help attract new crypto users to support the industry and it's movement.  An address book like Digital Names saved me a lot of time to pull up saved files and find the needed address.  Oh, and this is not limited to one specific blockchain, so you can have different wallet address like BTC, ETH, STEEM, ETC, and so on...