perhaps this is what you meant, but isn't the major impact that the stated price is potentially different from the bitcoin price? in other words, buying something for $10 might actually cost $12 because of capital gains. i agree that wallet software can track tax data automatically, but it seems like the true impact is that consumers won't know what price they're paying unless wallets compute a real-time real price. unless bitcoin prices stabilize within a very tight band, it seems like this issue is what would impair consumer adoption the most? i'm new to bitcoin, so please lemme know if i'm missing something.