[treis]

>DocuSign has a legal obligation here to prove authenticity, how are they ever going to be able to do that if everything is behind a single account?

By the signature.

I don't know how it works in DocuSign's internals, but there's no requirement for the signer to have an account. The point of the account is for users to see all of their documents in one place. In OP's case that's everyone's documents because they use a single account.

https://support.docusign.com/articles/How-do-I-sign-a-DocuSi...

[lowercased]

Yep. I just signed things via docusign 2 weeks ago. There was no 'create an account' first. IIRC, there was something at the end indicating I could create an account after the doc was signed, but I got a copy via email anyway which was all I needed. The last thing I need is yet another account/login for what is essentially a one-time thing.