I have never noticed anything like that maybe is been a while I visited the service section and if actually they launched any campaign the long lasting depends on the amount they located to the project for the period of the time. Most project only last for 14 days or for a month thereabouts and I don't think such project are really wanting to get the required visibility to enable their project spread across the board also entirely in the forum. Before I forget, welcome to Bitcointalk!