Comment by mattlondon

Agreed - the UX mock up there looks awful. If you go look at coinmarketcap.com there are already hundreds of coins out there. Are users going to have to find their wallet from hundreds/thousands on the lists? Or are maybe not all sites going to support every wallet, so therefore you're going to need to have multiple wallets to support multiple sites ... suddenly that "consistent identity" fails as you are actually juggling 20-30+ wallets for logging into different sites.

.... or it ends up that everyone just logs in using an ethereum wallet and you're back to centralisation.