I do not think you can make a donation topic for you because that would be begging. Afaik other members organized the donation for yahoo and it was not a formal thing but something some members did out the kindness of their heart. I think it helps that yahoo is a long time member who has contributed a lot and they were not looking for the donation at the start and only did because people wanted too. I think if they opened up a topic looking for donations it would have been removed by the mods.