To pile on another analogy: You draw some art on a dollar bill. The dollar is worth a dollar on the SQL Fed database. Regardless of any artistic value subjectively added, that dollar is now considered destroyed. That graffiti ruins the monetary use of that money. You are (by your own admission) not bequeathing that Bitcoin for the data that you are adding to it. You think the bitcoin as a monetary unit would help your heirs. That data is the graffiti that we all must store forever.