Just a quick note on our use-cases document: Has anyone chatted with Darrell O'Donnell on these matters?  I was just looking at his 2019 report on bridging identity wallets and crypto wallets and I came across this curious section.  He'll be at the EIC thing Thursday, so I was thinking of inviting him to have a little chat about it. Are people from outside the group welcome to open github issues on the use case documents or otherwise inform/discuss them, or is that an IPR no-no?