Why push aldrin to do anything? He can do whatever he wants with his stake. You can rest assured he's going to use it well, no need to blabla in my eyes. Supporting contributions to the project sounds fine.
The system won't work if all the big stakes just hoards a big stake. If he finally does as he said, basically his nxt become dead because it is only sitting there for forging without entering the economy.
I think for the whole system to work, there has to be a tax against money not put into circulation. Cfb , is it possible to design such a scheme?