i cant believe some people still don't understand this: the fact that we can ASSUME that a bitcoin miner is completely income motivated makes analyzing mempool dynamics relatively straight-forward
CPFP, LN-anchors, RBF-pinnings, timelocks, reorgs, it ALL depends on the sat/vbyte and nothing else
if we could not rely on the assumption that a miner is ONLY optimizing for sat/vbyte any protocol that isn't a simple payment is fundamentally broken
if you killed the mempool you killed bitcoin for anything that isn't a simple non-time sensitive payment