Soft drinks regardless of whether they are sweetened with sugar or artificial sweeteners cause all sorts of health problems including but not limited to obesity, diabetics, heart problems, cancers etc.
I voted for Ring Confidential Transactions. The health impact of this is to stimulate the brain when learning how they work, with all sorts of beneficial health results.
Good point about the potential negative health impacts of too much soda. However, it is worth noting that since dashndrink is "in a unique position to not be affiliated with a particular supplier" they could stock their backyard/garage vending machines with water or juice and drink that instead.