Spam in the form of a larger witness data transaction means there is less room for dozens of small utxo spam transactions and it cost some modest growth in hard drive required to host a node. Under 110 the cost of attacking the chain with small utxo bloating transactions drops dramatically but worse the time it would take to bloat the utxo set accelerates to an unsustainable level. After activation it would cost around 160 million to spam the chain to the point where in 6 months no nodes with 16gb of ram or less could stay synced. This is a threat. Currently it would cost 10x to do this and it would take an extremely long time because the degenerates like their retarded JPEGs enough to pay 5 grand to put them on chain. TLDR we are being guarded by retards.