Responses below. As a meta-remark, your comment doesn't steelman my argument, and I think that steelmanning arguments helps keep the conversation on track, so I'd appreciate it if you were to do so in the future.

I have a known problem with this (Anna Salamon told me so, therefore it is true) so Jonah's remark above is a priori plausible. I don't know if I can do so successfully, but will make an effort in this direction.

(It's true that what Jonah means is technically 'principle of charity' used to interpret original intent, not 'steelman' used to repair original intent, but the principle of charity says we should interpret the request above as if he had said 'principle of charity'.)