There's several threads already - as soon as MNHQ notices them they get moved to the Petitions and Activism board...where, unless a discussion has taken hold quickly so it stays active, they all languish unnoticed by the majority who just check Active convos and their favourite boards.
I'm sure MNHQ must have some good reason for the policy of only allowing petition links on that board but - especially in the case of proper petition.parliament.org ones I haven't a clue what it is. 