It seems odd to add a rule just for one person on dA. Besides, I've seen you ask many type designers, and I've seen many type designers get frustrated with you. Should they all present this rule just for you, or will you ever reach a point where you might have to acknowledge people don't appreciate being asked to spend 100+ hours for free and would indeed like to get money for their work. Perhaps save up some money and ask if people are willing to do it for that money? That's a lot more respectful to the designers.