FTA: If all I want to do is leave a comment on a blog -- like, say, this one -- then one of the weaker forms of identity will surely do. If I'm starting a new b

FTA: If all I want to do is leave a comment on a blog -- like, say, this one -- then one of the weaker forms of identity will surely do. If I'm starting a new bank account, or setting up a profile on a dating website, then maybe a stronger credential from my virtual wallet is necessary.