This probably means they don't care what you use, URIs or IRIs.
ActivityPub, on the other hand, has very clear requirements. I don't know how one could possibly interpret a vague reference to that AS section as a proof that ActivityPub identifiers must be IRIs.
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silverpill (silverpill@mitra.social)'s status on Thursday, 01-May-2025 20:48:16 JST silverpill