The email aliases feature is offered as a "reward" for regular supporters. By regular supporters we think of those who contribute with, at least, the equivalent of one cup of coffee a month. In order for the 'reward' not becoming the only incentive to donate, we expect to see the donation made before we can enable this feature.
It is not that we are promoting coffee, on the contrary - coffee is a symbol for exploitation and inequality so we thought that it is a good way to let people measure themselves how much they can give. We found this list of coffee cup prices around the world, it might not be very accurate, but it gives a good indication of the different fares.
Please take time to consider your contribution. If you can 'buy' us one cup of Rio De Janeiro coffee a month that's OK, but If you can afford a Double Decaf Soy Frappuccino With An Extra Shot And Cream a month, then you can really help us keep the Disroot platform running and make sure it is available for free for other people with less means.