Gregory's ServerRe: "Every ActivityPub server should accept, save, and forward all objects and activities with types in the Activity Vocabulary."
Interesting, I can't see the poll. So it seems the platform I am on (nodeBB) is not displaying that. Is the poll an object or activity?
eeeee, the poll is a Question object. Posting a poll is thus Create{Question}. In general, the way polls work in ActivityPub is mildly cursed. You vote by posting a Note with one of the options in the text in reply to the Question.