fismoluni: You are right, but IMHO the point is that one month is a little short.
I don't care that I sometimes disappear of the rankings, and if I would care, as Jason points out, all I would need is to pay the subscription.
But I do care that other top players disappear of the rankings, because when I want to challenge someone strong to a game, I have no way of finding those "not-that-inactive" players again. Not really a big issue, but I now realize that it is penalizing for all users, not only for pawns.