Censorship on chain level – Who gets to define "spam"? Breaks Bitcoin's core neutrality & permissionless ethos. No content-policing in the base layer.
UASF chain-split risk – Tiny signaling (~2-3% nodes), forced activation = 2017-style fork war redux. Economic suicide for noobs & hodlers.
Slippery slope to protocol capture – Ban inscriptions today, privacy coins or "bad" txs tomorrow. Turns sound money into politicized shitcoin ruleset.
