On-chain this set of "queue jumping" (MEV/ordering) is honestly not just harming retail investors; the ones who suffer the most are often those who think they are doing "deterministic arbitrage": you place a loan liquidation, add collateral, redeem, clearly calculating the collateral ratio and thresholds, but because of the ordering being manipulated, a slippage occurs, the price jumps, and you go from a safe zone directly into liquidation… This kind of psychological gap is quite significant.

I also admit to envying those who can consistently secure an ordering advantage, like using an exploit, but when it’s my turn to be queue-jumped, all that’s left is “So, fairness is a luxury.”

Recently, bridges have been hacked again, and oracles reported outrageous prices. Everyone rushes to "wait for confirmation," which is actually a tacit acknowledgment: in uncertainty, ordering can really mess people up.

Anyway, I now leave redundancy in all my on-chain actions, preferring to be slower rather than be taught a lesson by two transactions from someone else.