That sounds like fun and it certainly makes sense!
However, with 52 autographs per annum it will take forever, I think. Maybe start different paths simultaneously if too many people want to join in? Also, I would like my username next to my autograph...
I'm hoping the card(s) won't get stuck with someone failing.
Yes, Thomas, I would like to participate (you already got that). When you know the path(s), please publish or tell me who I have to PM my address and who I have to send the card.