The main problem with this approach for me is that it makes it easier to “farm” profiles from non-english-speaking people without the current barrier of convincing them to speak a phrase. You could also do the same with kids and babies.
I’m thinking out loud, but maybe PoH could be the “layer 1” identity protocol, and other accommodations could be made with "layer 2"s that allow for different rules.
For example, maybe someone could coordinate the creation of a “proof of muteness” and/or any other disabilities, a parallel protocol that would work as an universal, cross-government issued certificate of a given disability. Maybe working on this modularly would give better results, since the specific needs of each population could be targeted more directly by its community, and all the required accommodations could be made.
Then, after this protocol is created, from the PoH side we could then allow the list of profiles in that second registry to be exempt of a rule that it’s difficult for them to comply. For example, mute people could be required to hold a sign with the phrase written on it. We would just need to specify that in the the rules in the Policy Document, and provide to challengers/jurors some flag in the UI for these profiles, and as a backup, where to look up the list.
Also, the cap mentioned by Clément could work as a backstop for abuses of the “layer 2” protocols that accommodate different rules.
Later, we could then adapt PoH v2 to integrate these concepts more natively if necessary.