The peen was given to every alt who either voted in the thread or sent the friend request (I don’t remember which). So, no.

Same deal with Census Taker.

Best chance you have of determining alts from peen is to be aware, online, and really really fast when ones which are given to all current alts of a player are handed out. For example, at the beginning of the period where Patience My bum was first available, you could identify alts when the first person bought into Ep2, and could have a pretty good idea of the first 30 or so alts who was who. Once too many bought it, though, that was the end of that.