My thoughts You don't need to control where mod authors get its money. Really, don't feel obliged to it. If any, that control should be made by Beth. Then, a first measure to support mod authors might be not censor them: Let mod authors add links to the sites they want (paypal, patreon, whatever). If problem is mod authors asking for money, or messed up mod descriptions, punish people that ask for money, or mods with no proper description.