But its not already in there. To argue some steganography akin method of getting jpegs into the blockchain means we should just open the flood gates and make it easy for everyone to upload porn and worse makes myself and others wonder if there's not something else going on with peoples motives. Consensus rules allow for dust transactions, no ones is talking about removing those filters. The fact that your not worried about bitcoin becoming a cache of smut on my computer as well as the computers of everyone else, when there's every reason to believe there will be no mechanism to stop exactly that says nothing about the health of bitcoin and everything about your respect for our computers.