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@manlycoffee I mean, anybody can make a redirect from some URL to the actor representation. It's not my responsibility to make sure you used the actor ID to get there.

As long as the `id` is an https: URL that returns an Activity Streams 2.0 representation of the actor, it's a valid ActivityPub identifier.

Whether or not it's a valid *actor* is trickier. We don't have firm rules in AP, but generally you need at least an inbox; usually an outbox; and probably following/followers.