[dwaite]

> It is not good for use cases where you want to assert that you say something (e.g., I voted for Blah, or I authorized this transfer).

The challenge is knowing who 'I' is and why you should trust their statements.

Once a verifier knows who you are, you should be able to self-issue statements to them about yourself. Present back self-signed financial instructions in response to a request to confirm a money transfer, for example.

However, I've seen enough people to incorrectly assert who they voted for that I doubt such a self-assertion to have significant utility. Likewise, a self-asserted email address for contact could very well not meet the verifier's business/regulatory requirements without going through a more traditional email address verification.