This attack vector already existed since 2009. The fee economics haven't changed. If someone believes spammers were previously incapable of sending raw transactions, emailing miners, or direct submitting large OP_RETURN payloads directly, they're seriously underestimating how resourceful (and motivated) these degens are. The barrier was never technical sophistication. If there were meaningful demand, a simple GUI for crafting and submitting OP_RETURN transactions would have appeared within hours. The limiting factor isn't capability - it's cost and bitcoin imparts that just fine Jpegs on bitcoin are down because they're a shit store of value - not because of finger wagging or relay policy limitations. If anything, people suffering from spam derangement syndrome probably prolonged their relevance by gifting them free attention long after the market verdict was clear.