Wearing the OrangeFren signature is not only a way of promoting a cool and useful service that's in the best interests of Bitcoiners, but in addition to having a chance of getting a small bonus (not very frequent I admit, as we're on a very tight budget at the moment), it can help get you accepted into one of the campaigns managed by icopress (who were super nice to add our campaign to that list):

In these times of limited campaign slots and high competition between posters, it might motivate some to wear unpaid sigs between campaigns, like Bitlist, BTCcleanup, Peach, OrangeFren or others