when follower_collection? and recipients > threshold ->
message
|> Map.put("to", [follower_collection])
|> Map.put("cc", ["https://www.w3.org/ns/activitystreams#Public"])
when follower_collection? and recipients > threshold ->
message
|> Map.put("to", [follower_collection])
|> Map.put("cc", ["https://www.w3.org/ns/activitystreams#Public"])