I see first hand how much time and effort Dmitri puts into organising this event, and I can't imagine how he (or anyone) would be able to make this event sustai

I see first hand how much time and effort Dmitri puts into organising this event, and I can't imagine how he (or anyone) would be able to make this event sustainable without getting an income from it. When you consider transaction fees, tax and expenses, Dmitri is being generous with his time.