Effective altruism is just nonsense. Giving money "away" is so vague that it's obviously tax discounts. Away to whom? Will give money blindly really help solving problems or keeps them alive? A lot of questions pop up.
Are they giving it to themselves somehow? At best I can imagine they get their name on a school or something, a nice thing but hardly the same as still having the 100 million or whatever bucks in their pocket.