[Avicebron]

Partly. Partly because using EUF-CMA pins the record to the CA which makes membership deniability non-trivial which I don't love. It's not dumb, it's what Signal uses AFAIK and in transit message deniability is different than the signer. But still..

Also that sentence structure is very claudelike.

[dfish]

English is not my mothertongue, therefore I told Claude (and GLM-5.2) to improve the wording as much as they could.